Wind power circulation workshop of cotton processing production line

Abstract

The invention discloses a wind power circulation workshop for a cotton processing production line, and the workshop comprises a process workshop which is used for installing process equipment for cotton processing; the air inducing system is connected with preset process equipment in the process workshop so as to provide wind power cotton conveying power; the dust removal system is mounted in a given dust removal workshop or outdoors; if the dust removal system is installed in the dust removal workshop, an exhaust pipe of the dust removal system is connected into the process workshop to form an air return pipe or directly discharges air to the dust removal workshop, and the dust removal workshop is communicated with the process workshop; if the dust removal system is arranged outdoors, an exhaust pipe of the dust removal system is connected into the process workshop to form an air return pipe; and the dust removal system comprises a bag-type dust remover. According to the wind power circulation workshop of the cotton processing production line, the workshop environment temperature can be effectively increased.

Description

Technical Field

[0001] The invention relates to a cotton processing production line workshop. Background Art

[0002] The movement of materials in the cotton processing production line is mostly achieved by wind power. Each cotton processing production line requires about 700,000 to 900,000 m 3 / h of air volume, and the power consumption of the fan usually accounts for about 40% of the power consumption of the entire cotton production line.

[0003] The wind force mainly adopts relatively large-power induced draft fans (7.5kw~18.5kw centrifugal fans or special material fans, which are generally centrifugal fans). The process equipment of cotton processing is connected by cotton conveying pipes, and the process equipment of the corresponding workstation generally uses auxiliary equipment such as dust cages and separators to realize the transportation of materials (seed cotton or lint cotton). For example, a dust cage is provided with a corresponding induced draft pipe connected to the induced draft fan at one or both ends. The induced draft generates negative pressure at the dust cage, so that, for example, seed cotton enters the space where the dust cage is located through the cotton conveying pipe and is adsorbed on the rotating dust cage. A predetermined position outside the dust cage is provided to peel off, for example, seed cotton adsorbed on the dust cage, to complete material transportation. In this process, some impurities will pass through the mesh surface of the dust cage into the interior of the dust cage, and further enter the induced draft fan.

[0004] In order to meet environmental emission requirements, dust removal devices are often installed in the front or back stages of the induced draft fan. However, since the dust removal effect of the current dust collectors (mostly cyclones) used in cotton processing production lines is not very ideal, the corresponding induced draft fans are usually arranged outside the workshop during process layout. Although the air discharged from the dust collector meets environmental emission requirements, it is not suitable for use as a conveying gas. In this way, the induced draft fan sucks the material and the mixture emptied in the workshop into the workshop through suction, so that the material flows on the cotton processing production line, and then the material and air are separated by, for example, a separator, and the separated air is exhausted to the outside of the workshop through the induced draft fan, resulting in a negative pressure state in the workshop.

[0005] It should be known that the harvest season in my country's main cotton-producing areas is after the eighth lunar month, and the harvest is generally completed around the ninth lunar month. Cotton processing is mostly done after the ninth lunar month, when the weather gradually turns cold, especially in high-latitude areas such as Xinjiang, where the weather turns colder more obviously. In view of this, during processing, the workshop is in a negative pressure state, causing the cold air outside to be continuously replenished into the workshop. Due to the fluidity of the cold air, the perceived temperature in the workshop may be lower than that outside the workshop, which will cause many problems. First, it will cause the equipment to be unstable and easy to damage. For example, belts will become hard when the temperature is relatively low, and the fatigue resistance will decrease under this condition. At the same time, if the workshop temperature is low and the body temperature cannot rise, the efficiency of the process equipment may be reduced. Second, the low workshop temperature causes the workshop operators to have a very bad working environment. Working in a working environment of more than ten degrees below zero for a long time will affect their health, and this may cause the problem of difficulty in recruiting workers; third, wearing parts are more easily damaged under low temperature conditions, resulting in increased processing costs; fourth, it is difficult to build a talent echelon, and young people are unwilling to do this job, which is not conducive to the development of the industry. Utility Model Content

[0006] The purpose of the invention is to provide a wind circulation workshop for a cotton processing production line which can form an internal circulation and thus effectively improve the ambient temperature of the workshop.

[0007] According to an embodiment of the invention, a wind circulation workshop of a cotton processing production line is provided, comprising: Process workshop, used to install process equipment for cotton processing; The induced draft system is connected to the predetermined process equipment in the process workshop to provide wind-driven cotton transport power; The dust removal system is installed in a given dust removal workshop or outdoors. If the dust removal system is installed in the dust removal workshop, the exhaust duct of the dust removal system is connected to the process workshop to form a return air duct or is directly discharged to the dust removal workshop and the dust removal workshop is connected to the process workshop. If the dust removal system is set outdoors, the exhaust duct of the dust removal system is connected to the process workshop to form a return air duct. The dust removal system includes a bag dust collector.

[0008] In the wind circulation workshop of the above-mentioned cotton processing production line, optionally, the bag dust collector is a pulse bag dust collector, a mechanical vibration bag dust collector, a pneumatic vibration bag dust collector or an air ring back-blowing bag dust collector.

[0009] Optionally, the dust removal system also includes a Shakron located in front of the bag filter.

[0010] Optionally, the bag dust collector is equipped with multiple units, and the induced air ducts corresponding to the same type of process equipment are connected to one bag dust collector; the induced air ducts corresponding to different types of process equipment are connected to different bag dust collectors.

[0011] Optionally, if the dust removal workshop is connected to the process workshop, a partition wall is provided between the dust removal workshop and the process workshop; The structure used to connect the dust removal workshop and the process workshop is an array of holes or windows opened on the partition wall.

[0012] Optionally, the window array includes two rows and multiple columns of windows, and the window array is located in the upper middle part of the partition wall.

[0013] Optionally, the return air duct is connected to the process workshop from the upper part of the process workshop.

[0014] Optionally, the process workshop is provided with an exhaust fan, and the air volume exhausted by the exhaust fan is one twentieth to one tenth of the return volume of the dust removal system.

[0015] Optionally, the exhaust fan is arranged on the top of the process workshop.

[0016] Optionally, if the front stage of the process equipment is equipped with a dryer, the induced air duct leading from the process equipment is installed with a dehumidifier.

[0017] Different from the current method of directly separating the conveying air from the material and then discharging it directly into the atmosphere, the wind circulation workshop of the cotton processing production line based on the embodiment of the invention purifies the conveying air through a bag dust collector and then returns it to the process workshop. Under this condition, an internal circulation can be formed, thereby effectively improving the ambient temperature in the workshop and solving many problems caused by the low temperature in the workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a circulating workshop in a cotton ginning machine workshop in the first embodiment.

[0019] Figure 2 It is a structural schematic diagram of a circulating workshop in a cotton ginning machine workshop in the second embodiment.

[0020] Figure 3 It is a structural schematic diagram of a circulating workshop in a cotton ginning machine workshop in the third embodiment.

[0021] Figure 4 It is a structural schematic diagram of a circulating workshop in a velvet stripping machine workshop in the fourth embodiment.

[0022] In the figure: 1. Cotton ginning workshop, 2. Cotton ginning machine, 3. Partition wall with double-row windows, 4. Induced draft fan, 5. Suction branch pipe, 6. Suction main pipe, 7. Dust removal workshop, 8. Pulse bag dust collector, 9. Return air duct, 10. Depilation workshop, 11. Depilation machine, 12. Separator. DETAILED DESCRIPTION

[0023] In the embodiments of the invention, there are several points of common sense that need to be explained: 1. The impurity content of materials will vary at different stages, because the incoming seed cotton will be cleaned and processed step by step after being sent to the cotton processing production line until the lint cotton that meets the specified quality requirements is obtained and finally packaged into cotton bales. It can also be seen that the impurity content of the conveying air at different process stages after being separated from the materials will also be different.

[0024] 2. Affected by many factors such as time, region, and harvesting method, the impurity content of seed cotton is not the same. Different batches of seed cotton entering the site often have differences in impurity content, moisture content, etc.

[0025] 3. Bag filter, also known as bag type dust collector, is a dry dust filtering device. Its basic working principle is to use filter bags made of textile filter cloth or non-textile felt to filter dust-containing gas with the help of the filtering effect of fiber fabric. When the dust-containing gas enters the bag type dust collector, the dust with large particles and high specific gravity settles down due to the effect of gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified. The efficiency of the bag type dust collector is very high, generally reaching more than 99%. The dust concentration of the gas at the outlet of the bag type dust collector is usually less than or equal to tens of milligrams / cubic meter, which can fully meet the requirements of reusing the conveying air.

[0026] See the instruction manual Figures 1 to 4 The process workshop refers to a workshop used to install cotton processing equipment, such as seed cotton cleaning machine, drying machine, cotton gin 2, lint cleaning machine, depilator 11 and other cotton processing equipment.

[0027] The dust removal workshop is a workshop for installing a bag filter, and centrifugal fans for induced draft, for example, can also be installed in the dust removal workshop 7. In addition, the induced draft fan 4 is usually installed outdoors in the cotton processing production line.

[0028] In the embodiment of the invention, the cotton processing production line uses wind recycling, and the recycling here can allow part of the conveying gas to participate in the circulation, part of it can be discharged directly, and it can also be transported to the process workshop together, and the process workshop will indiscriminately discharge part of the mixed air in the process workshop.

[0029] As mentioned above, the process workshop is used to install process equipment for cotton processing, more specifically, at least the traditional equipment that should be installed in the workshop. It should also be noted that, for example, a cotton processing production line does not necessarily include a delinting machine 11 on the same line. In other words, the delinting machine 11 can be located independently in a workshop, but it can also be in the same workshop as a cotton processing production line using seed cotton as raw material.

[0030] The induced draft system is a necessary configuration of the cotton processing production line. In a traditional cotton processing production line, the induced draft system is usually located outdoors. In the embodiment of the present invention, the induced draft system can be located outdoors or indoors.

[0031] It is common sense to connect the induced draft system with the predetermined process equipment on the cotton processing production line, such as connecting with the dust cage of the seed cotton cleaning machine, the dust cage of the separator 12, and the dust cage of the cotton gin 2, etc., for the transportation of materials and the separation of materials and conveying gas, etc. Then it is connected to the outdoors through a pipeline.

[0032] In view of the fact that in some embodiments of the present invention, the dust removal system is installed in the dust removal workshop 7, the induced draft system can also be installed in the dust removal workshop 7.

[0033] exist Figure 1 , 2 In the examples of and 4, the dust removal system is installed in the dust removal workshop 7, and Figure 3 In the illustrated structure, the dust removal system is installed outdoors. The dust removal system is set up indoors or outdoors, and the return air design can be exactly the same or different.

[0034] Figure 2 and Figure 3 In the illustrated structure, although one dust removal system is set outdoors and the other dust removal system is set indoors, the return air design is exactly the same, and both use the return air duct 9 to return air.

[0035] Correspondingly, one end of the return air duct 9 is connected to the outlet of the bag filter, and the other end is connected back to the process workshop.

[0036] If the dust removal system is installed in the dust removal workshop 7, the dust removal workshop 7 can be arranged in parallel with the process workshop, separated from each other by a partition wall, and then a return air outlet can be arranged on the partition wall.

[0037] It is understandable that if the dust removal system is configured in an independent dust removal workshop 7, and the dust removal workshop 7 is relatively closed, the gas discharged from the dust removal system through its outlet will inevitably make the dust removal workshop 7 present a positive pressure state, and as mentioned above, due to the induced air effect of the induced draft fan 4, the process workshop will present a negative pressure state. Under this condition, a pressure difference will appear between the dust removal workshop 7 and the process workshop, and the conveying gas will be returned to the process workshop. This method belongs to the gravity flow method using the pressure difference.

[0038] Even in the example of using the dust removal workshop 7, the outlet of the dust removal system can be directly connected to the process workshop by means of the return air duct 9. Compared with the gravity flow method, the return air controllability of the forced return exhaust using the return air duct 9 is relatively better.

[0039] Regarding the dust removal system, as mentioned above, in order to meet the cleanliness requirements of the conveying air, it should at least include a bag dust collector.

[0040] About bag dust collector, Figures 1 to 4The pulse bag dust collector 2 is used in the illustrated structure. It should be known that the pulse bag dust collector 2 is a bag dust collector classified by the cleaning method. As an alternative, a mechanical vibration bag dust collector, a pneumatic vibration bag dust collector or an air ring back-blowing bag dust collector can also be used.

[0041] It should be known that a mechanical vibration bag dust collector is a bag dust collector that uses a mechanical vibration device to clean dust, and is suitable for occasions with high dust concentrations. A pneumatic vibration bag dust collector is a bag dust collector that uses pneumatic vibration to clean dust, and is suitable for occasions with low dust concentrations. The full name of the pulse bag dust collector 2 is the pulse jet bag dust collector, which is a bag dust collector that cleans dust by pulse jetting, and is suitable for occasions with high dust concentrations. An air ring back-blowing bag dust collector is a bag dust collector that removes dust by back-blowing airflow, and is suitable for various working environments, with a very wide range of applications. The above four types of bag dust collectors are all common dust collectors in the field of dust removal technology. In the embodiments of the invention, they are only selected in this field, and no improvements are made to the bag dust collectors, which will not be repeated here. As mentioned above, due to the differences in the impurity content and moisture absorption rate of seed cotton, especially in the front-stage process equipment, such as the seed cotton cleaner, the impurity content of seed cotton is the highest. Therefore, at least part of the dust removal system also includes a shaker located in the front stage of the bag dust collector to settle impurities with relatively large specific gravity, such as stones, to ensure the reliability of the bag dust collector.

[0042] Furthermore, the bag-type dust collector is equipped with multiple units, and the induced draft ducts corresponding to the same type of process equipment are connected to one bag-type dust collector; the induced draft ducts corresponding to different types of process equipment are connected to different bag-type dust collectors, so as to adjust the configuration of different dust removal equipment according to the impurity content of the conveyed gas, which has better adaptability.

[0043] exist Figure 1 and Figure 4 In the illustrated structure, the dust removal workshop 7 is connected to the process workshop, and a partition wall is provided between the dust removal workshop 7 and the process workshop; Figure 1 and Figure 4 In the illustrated structure, the partition wall is represented as a partition wall with double rows of windows 3, that is, the partition wall is provided with double rows of windows, and the process workshop and the dust removal workshop 7 are connected through the windows. In some embodiments, a hole array can also be provided on the partition wall for connecting the process workshop and the dust removal workshop 7.

[0044] In a preferred embodiment, the window array includes two rows and multiple columns of windows, and the window array is located in the upper middle part of the partition wall to reduce the impact of airflow on operators.

[0045] Correspondingly, in the embodiment equipped with the return air duct 9, the return air duct 9 is connected to the process workshop from the upper part of the process workshop.

[0046] In order to avoid excessive accumulation of pollutants harmful to the human body caused by internal circulation in the process workshop alone, an exhaust fan is installed in the process workshop. The air volume exhausted by the exhaust fan is one twentieth to one tenth of the return air volume of the dust removal system, so as to replace part of the return air.

[0047] Furthermore, the exhaust fan is arranged on the top of the process workshop.

[0048] In addition, in some embodiments, if the front stage of the process equipment is equipped with a dryer, the induced air duct leading from the process equipment is installed with a dehumidifier to reduce the impact on the bag filter.

Claims

1. A wind circulation workshop for a cotton processing production line, characterized in that: include: Process workshop, used to install process equipment for cotton processing; The induced draft system is connected to the predetermined process equipment in the process workshop to provide wind-driven cotton transport power; The dust removal system is installed in a given dust removal workshop or outdoors. If the dust removal system is installed in the dust removal workshop, the exhaust duct of the dust removal system is connected to the process workshop to form a return air duct or is directly discharged to the dust removal workshop and the dust removal workshop is connected to the process workshop. If the dust removal system is set outdoors, the exhaust duct of the dust removal system is connected to the process workshop to form a return air duct. The dust removal system includes a bag dust collector.

2. The wind circulation workshop of the cotton processing production line according to claim 1 is characterized in that: The bag dust collector is a pulse bag dust collector, a mechanical vibration bag dust collector, a pneumatic vibration bag dust collector or an air ring back-blowing bag dust collector.

3. The wind circulation workshop of the cotton processing production line according to claim 1 or 2, characterized in that: The dust removal system also includes a Shakron located in the front stage of the bag filter.

4. The wind circulation workshop of the cotton processing production line according to claim 1 is characterized in that: The bag dust collectors are equipped with multiple units, and the induced air ducts corresponding to the same type of process equipment are connected to one bag dust collector; the induced air ducts corresponding to different types of process equipment are connected to different bag dust collectors.

5. The wind circulation workshop of the cotton processing production line according to claim 1 is characterized in that: If the dust removal workshop is connected to the process workshop, a partition wall is installed between the dust removal workshop and the process workshop; The structure used to connect the dust removal workshop and the process workshop is an array of holes or windows opened on the partition wall.

6. The wind circulation workshop of the cotton processing production line according to claim 5 is characterized in that: The window array includes two rows and multiple columns of windows, and the window array is located in the upper middle part of the partition wall.

7. The wind circulation workshop of the cotton processing production line according to claim 1 is characterized in that: The return air duct is connected to the process workshop from the upper part of the process workshop.

8. The wind circulation workshop of the cotton processing production line according to claim 1 is characterized in that: The process workshop is equipped with exhaust fans, and the air volume exhausted by the exhaust fans is one twentieth to one tenth of the return volume of the dust removal system.

9. The wind circulation workshop of the cotton processing production line according to claim 1, characterized in that: The exhaust fan is arranged on the top of the process workshop.

10. The wind circulation workshop of the cotton processing production line according to claim 1, characterized in that: If the front stage of the process equipment is equipped with a dryer, the induced air duct leading from the process equipment is installed with a dehumidifier.

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