飼料普通粉碎系統(tǒng)和微粉碎系統(tǒng)關(guān)鍵技術(shù)參數(shù)優(yōu)化
發(fā)布時(shí)間：2018-08-11 12:40
【摘要】：節(jié)能降耗作為我國(guó)飼料工業(yè)轉(zhuǎn)變生產(chǎn)方式的重要發(fā)展方向,日益受到重視。作為飼料加工企業(yè)耗能最大系統(tǒng)之一,粉碎系統(tǒng)的節(jié)能降耗勢(shì)在必行。本課題的目的一是通過(guò)對(duì)代表性錘片微粉碎機(jī)進(jìn)行參數(shù)優(yōu)化試驗(yàn),獲得其最佳操作參數(shù)和經(jīng)濟(jì)指標(biāo),實(shí)現(xiàn)節(jié)能降耗;二是對(duì)多家國(guó)內(nèi)飼料企業(yè)的普通粉碎、微粉碎系統(tǒng)、超微粉碎的吸風(fēng)系統(tǒng)進(jìn)行現(xiàn)場(chǎng)測(cè)定,獲得這些系統(tǒng)的參數(shù)配置,分析其合理性和共性問(wèn)題,為這些系統(tǒng)的升級(jí)改造與節(jié)能降耗提供理論指導(dǎo)。試驗(yàn)的主要內(nèi)容與結(jié)論如下:試驗(yàn)一:選擇SWFP65×125型(200 kW)飼料錘片微粉碎機(jī)為研究對(duì)象,以錘片厚度(6 mm、5 mm、4 mm)、吸風(fēng)量(風(fēng)門(mén)開(kāi)啟程度)、篩片孔徑(使用組合篩片時(shí)正反轉(zhuǎn))為研究變量,以粉碎機(jī)生產(chǎn)率、單位電耗、錘片磨損等為考核指標(biāo),進(jìn)行了粉碎機(jī)工作參數(shù)優(yōu)化試驗(yàn)。結(jié)果表明:錘片式粉碎機(jī)生產(chǎn)率隨著吸風(fēng)量從0增至最佳吸風(fēng)量而持續(xù)增加,噸料電耗則持續(xù)降低;錘片厚度以5 mm厚噸料電耗最低;篩片的組合以錘片至上而下打向較小孔徑篩片比打向較大孔徑篩片的粉碎效果更好。該設(shè)備的最佳工藝參數(shù)組合為:錘片厚度5mm,吸風(fēng)量為67%的風(fēng)門(mén)開(kāi)啟度,篩片組合為0.8mm篩孔篩片迎向錘片打擊方向。試驗(yàn)二:選擇2臺(tái)SWFP65×100C型(160 kW)飼料錘片微粉碎機(jī)為研究對(duì)象,吸風(fēng)量(風(fēng)門(mén)開(kāi)啟程度)為研究變量,以粉碎機(jī)生產(chǎn)率、單位電耗等為考核指標(biāo),進(jìn)行了粉碎機(jī)吸風(fēng)量?jī)?yōu)化試驗(yàn)。結(jié)果表明:1#粉碎機(jī)用4 mm孔徑篩片,5 mm厚錘片,粉碎物料(鯉魚(yú)料,草魚(yú)料)時(shí),最佳風(fēng)門(mén)開(kāi)啟度為66%;4#粉碎機(jī)用3 mm孔徑篩片,5 mm厚錘片,粉碎物料(玉米,豆粕)時(shí),最佳風(fēng)門(mén)開(kāi)度為66%。試驗(yàn)三:選取江蘇、廣州等地的6家飼料廠的10條生產(chǎn)線,對(duì)其普通粉碎系統(tǒng)、微粉碎系統(tǒng)和超微粉碎系統(tǒng)的通風(fēng)除塵系統(tǒng)進(jìn)行現(xiàn)場(chǎng)測(cè)試。根據(jù)測(cè)試得到的風(fēng)速、風(fēng)量、風(fēng)壓、粉碎物料粒度、脈沖粉塵粒度、管道尺寸和緩沖斗尺寸等對(duì)整個(gè)吸風(fēng)系統(tǒng)進(jìn)行分析評(píng)價(jià)。結(jié)果表明:普通粉碎機(jī)和微粉碎機(jī)粉碎物料時(shí)產(chǎn)生的阻力至少比其空轉(zhuǎn)狀態(tài)時(shí)高1000 Pa;部分粉碎系統(tǒng)通風(fēng)除塵管道過(guò)長(zhǎng),個(gè)別管道線路設(shè)計(jì)不合理;部分粉碎系統(tǒng)的風(fēng)機(jī)配置與其系統(tǒng)所需的風(fēng)壓、風(fēng)量要求不匹配;普通粉碎系統(tǒng)和微粉碎系統(tǒng)存在對(duì)物料粉碎過(guò)細(xì),過(guò)度加工現(xiàn)象;粉碎機(jī)下緩沖斗尺寸偏小,沙克龍選型存在問(wèn)題,致使大量物料被吸入脈沖除塵器;對(duì)通風(fēng)除塵系統(tǒng)的運(yùn)行參數(shù)無(wú)有效監(jiān)控。在今后的粉碎系統(tǒng)設(shè)計(jì)工作中,應(yīng)對(duì)這些問(wèn)題加以改進(jìn)。
[Abstract]:Energy saving and consumption reduction, as an important developing direction in the transformation of production mode in China's feed industry, has been paid more and more attention to. As one of the largest energy consumption systems in feed processing enterprises, the energy saving and consumption reduction of comminution system is imperative. The purpose of this project is to achieve energy saving and consumption reduction by optimizing the parameters of the representative hammer mill, and to obtain the best operating parameters and economic indexes, the second is to comminute and micro-comminute the common grinding system of many domestic feed enterprises. The ultrafine pulverized air suction system is measured on the spot, the parameter configuration of these systems is obtained, the rationality and common problems of these systems are analyzed, and the theoretical guidance is provided for upgrading these systems and saving energy and consumption. The main contents and conclusions of the experiment are as follows: experiment 1: select SWFP65 脳 125 (200kW) feed hammer micro-pulverizer as the research object. Taking the thickness of hammer (6 mm ~ 5 mm ~ 4 mm),) and the aperture of sieve (positive and negative turn when using combined sieve) as research variables, the productivity of pulverizer, unit power consumption, wear of hammer and so on were taken as test indexes. The optimization test of the working parameters of the pulverizer was carried out. The results show that the productivity of hammer mill increases continuously with the increase of air suction rate from 0 to the optimum suction rate, and the power consumption of per ton material decreases continuously, and the thickness of hammer plate is the lowest in thickness of 5 mm thick ton material. The crushing effect of the combination of the sieve flake is better than that of the larger aperture sieve sheet by hammering the top of the plate and striking down the smaller aperture sieve. The optimum technological parameters of the equipment are as follows: the thickness of the hammer is 5 mm, the air suction rate is 67%, and the combination of the sieve is the direction of the 0.8mm sieve screen facing to the hammer. Experiment 2: two SWFP65 脳 100C (160kW) feed hammer microcrusher were selected as the research object, the suction air volume (the opening degree of the air valve) as the research variable, the mill productivity, the unit electricity consumption as the examination index, the optimized test of the pulverizer suction air volume was carried out. The results show that the optimum opening degree of the air door is 660.The optimum opening degree of the air door is when the size of 4 mm sieve is 5 mm thick hammer and the crushing material (carp, grass carp) is 5 mm thick hammer with 3 mm aperture sieve, and when crushing material (corn, soybean meal), the optimum opening degree of the air door is 66m sieve with 3 mm diameter sieve with 5 mm thick hammer, and when crushing material (common carp, grass carp). The optimum throttle opening is 66. Test 3: ten production lines of 6 feed plants in Jiangsu and Guangzhou were selected and the ventilation and dust removal system of general pulverizing system, micro-comminuting system and ultrafine pulverizing system were tested on the spot. According to the wind speed, air volume, wind pressure, particle size of comminuted material, particle size of pulse dust, size of pipeline and size of buffer bucket, the whole suction system is analyzed and evaluated. The results show that the resistance of comminuted materials in ordinary pulverizer and micro-pulverizer is at least 1000 Pa higher than that in idle condition, and the ventilation and dust removal ducts of partial comminution system are too long and the design of individual pipeline lines is unreasonable. The fan configuration of partial comminution system does not match with the wind pressure and air volume required by the system; the ordinary comminution system and the micro-comminution system have the phenomenon of crushing the material too thin and overmachining; the size of the buffer bucket under the pulverizer is small, There are some problems in the selection of Shakelong, which results in a large number of materials being inhaled by a pulse dust collector, and no effective monitoring of the operational parameters of the ventilation and dust removal system. These problems should be improved in the design of crushing system in the future.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：S817.122
本文編號(hào)：2177019
[Abstract]:Energy saving and consumption reduction, as an important developing direction in the transformation of production mode in China's feed industry, has been paid more and more attention to. As one of the largest energy consumption systems in feed processing enterprises, the energy saving and consumption reduction of comminution system is imperative. The purpose of this project is to achieve energy saving and consumption reduction by optimizing the parameters of the representative hammer mill, and to obtain the best operating parameters and economic indexes, the second is to comminute and micro-comminute the common grinding system of many domestic feed enterprises. The ultrafine pulverized air suction system is measured on the spot, the parameter configuration of these systems is obtained, the rationality and common problems of these systems are analyzed, and the theoretical guidance is provided for upgrading these systems and saving energy and consumption. The main contents and conclusions of the experiment are as follows: experiment 1: select SWFP65 脳 125 (200kW) feed hammer micro-pulverizer as the research object. Taking the thickness of hammer (6 mm ~ 5 mm ~ 4 mm),) and the aperture of sieve (positive and negative turn when using combined sieve) as research variables, the productivity of pulverizer, unit power consumption, wear of hammer and so on were taken as test indexes. The optimization test of the working parameters of the pulverizer was carried out. The results show that the productivity of hammer mill increases continuously with the increase of air suction rate from 0 to the optimum suction rate, and the power consumption of per ton material decreases continuously, and the thickness of hammer plate is the lowest in thickness of 5 mm thick ton material. The crushing effect of the combination of the sieve flake is better than that of the larger aperture sieve sheet by hammering the top of the plate and striking down the smaller aperture sieve. The optimum technological parameters of the equipment are as follows: the thickness of the hammer is 5 mm, the air suction rate is 67%, and the combination of the sieve is the direction of the 0.8mm sieve screen facing to the hammer. Experiment 2: two SWFP65 脳 100C (160kW) feed hammer microcrusher were selected as the research object, the suction air volume (the opening degree of the air valve) as the research variable, the mill productivity, the unit electricity consumption as the examination index, the optimized test of the pulverizer suction air volume was carried out. The results show that the optimum opening degree of the air door is 660.The optimum opening degree of the air door is when the size of 4 mm sieve is 5 mm thick hammer and the crushing material (carp, grass carp) is 5 mm thick hammer with 3 mm aperture sieve, and when crushing material (corn, soybean meal), the optimum opening degree of the air door is 66m sieve with 3 mm diameter sieve with 5 mm thick hammer, and when crushing material (common carp, grass carp). The optimum throttle opening is 66. Test 3: ten production lines of 6 feed plants in Jiangsu and Guangzhou were selected and the ventilation and dust removal system of general pulverizing system, micro-comminuting system and ultrafine pulverizing system were tested on the spot. According to the wind speed, air volume, wind pressure, particle size of comminuted material, particle size of pulse dust, size of pipeline and size of buffer bucket, the whole suction system is analyzed and evaluated. The results show that the resistance of comminuted materials in ordinary pulverizer and micro-pulverizer is at least 1000 Pa higher than that in idle condition, and the ventilation and dust removal ducts of partial comminution system are too long and the design of individual pipeline lines is unreasonable. The fan configuration of partial comminution system does not match with the wind pressure and air volume required by the system; the ordinary comminution system and the micro-comminution system have the phenomenon of crushing the material too thin and overmachining; the size of the buffer bucket under the pulverizer is small, There are some problems in the selection of Shakelong, which results in a large number of materials being inhaled by a pulse dust collector, and no effective monitoring of the operational parameters of the ventilation and dust removal system. These problems should be improved in the design of crushing system in the future.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：S817.122
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