Wind power circulation workshop of cotton processing production line

Abstract

The utility model discloses a wind power circulation workshop for a cotton processing production line, which comprises a process workshop 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 environment temperature of the workshop can be effectively increased.

Description

Technical Field

[0001] The utility model 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 also centrifugal fans). The cotton processing process equipment is connected by cotton conveying pipes, and the process equipment at the corresponding workstations generally use auxiliary equipment such as dust cages and separators to realize the transportation of materials (seed cotton or lint). For example, the dust cage is provided with a corresponding induced draft pipe connected to the induced draft fan at one or both ends. The induced draft creates a 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. At a predetermined position outside the dust cage, a device is provided for peeling off, for example, seed cotton adsorbed on the dust cage, thereby completing material transportation. During 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] To meet environmental emission requirements, dust removal devices are often installed before or after the induced draft fan (IDF). However, because current dust collectors used in cotton processing lines (mostly cyclones) are not very effective, the IDF fans are typically located outside the workshop during process layout. While the air exhausted by the dust collector meets environmental emission requirements, it is unsuitable for use as a conveying gas. Consequently, the IDF draws the mixture of material and air from the workshop into the workshop, allowing the material to circulate through the cotton processing line. The material and air are then separated by, for example, a separator, and the separated air is exhausted outside the workshop through the IDF, creating a negative pressure inside the workshop.

[0005] It's important to note that the harvest season in my country's major cotton-producing regions begins after the eighth lunar month and generally concludes around the ninth lunar month. Cotton processing typically begins after the ninth lunar month, when the weather gradually turns colder, particularly in high-latitude regions like Xinjiang. Because of this, the negative pressure in the processing workshop requires a constant flow of cold air from outside. Due to the fluidity of this cold air, the perceived temperature inside the workshop can be lower than outside. This can lead to numerous problems. First, it can cause unstable equipment operation and damage. For example, belts, for example, become stiffer at relatively low temperatures, reducing their fatigue resistance. Furthermore, if the workshop temperature is low, the machine body temperature cannot rise, potentially reducing process equipment efficiency. Second, the low workshop temperature creates a harsh working environment for operators. Working in temperatures exceeding -10°C for extended periods can negatively impact their health and potentially lead to recruitment difficulties. Third, low temperatures can further damage vulnerable parts, increasing processing costs. Fourth, it can hinder the development of a skilled workforce, with young people reluctant to pursue this career, hindering the industry's development. Utility Model Content

[0006] The purpose of the utility model is to provide a wind circulation workshop of 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 present utility model, a wind circulation workshop of a cotton processing production line is provided, comprising:

[0008] Process workshop, used to install process equipment for cotton processing;

[0009] The induced draft system is connected to the predetermined process equipment in the process workshop to provide wind-powered cotton transport power;

[0010] 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 and the process workshop are connected. If the dust removal system is set up outdoors, the exhaust duct of the dust removal system is connected to the process workshop to form a return air duct.

[0011] The dust removal system includes a bag dust collector.

[0012] 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.

[0013] Optionally, the dust removal system further includes a Shaker located before the bag filter.

[0014] 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.

[0015] 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;

[0016] 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.

[0017] 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.

[0018] Optionally, the return air duct is connected to the process workshop from the upper part of the process workshop.

[0019] 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.

[0020] Optionally, the exhaust fan is arranged on the top of the process workshop.

[0021] 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.

[0022] 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 utility model 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

[0023] Figure 1 It is a structural diagram of a circulating workshop in a cotton ginning machine workshop in the first embodiment.

[0024] Figure 2 It is a structural diagram of a circulating workshop in a cotton ginning machine workshop in the second embodiment.

[0025] Figure 3 It is a structural diagram of a circulating workshop in a cotton ginning machine workshop in the third embodiment.

[0026] Figure 4 It is a structural diagram of a circulating workshop in a lint stripping machine workshop in the fourth embodiment.

[0027] In the figure: 1. Cotton ginning workshop, 2. Cotton gin, 3. Partition wall with double rows of 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

[0028] In the embodiments of the present invention, there are several points of common sense that need to be explained:

[0029] 1. The trash content of materials varies at different stages. This is because after the incoming seed cotton is fed into the cotton processing line, it is cleaned and processed step by step until the lint cotton meets the specified quality requirements and is finally packed into bales. Therefore, the trash content of the conveying air after separation from the material at different process stages will also vary.

[0030] 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 market often have differences in impurity content, moisture content, etc.

[0031] 3. Bag dust collectors, also known as bag-type dust collectors, are dry dust filtration devices. Their basic working principle is to use filter bags made of textile filter cloth or non-woven felt to filter dust-laden gas with the help of the filtering effect of fiber fabric. When the dust-laden gas enters the bag dust collector, large particles with high specific gravity settle due to gravity and fall into the ash hopper. The gas containing finer dust is retained when passing through the filter material, and the gas is purified. The efficiency of bag dust collectors is very high, generally reaching over 99%. The dust concentration of the gas at the outlet of the bag dust collector is usually less than or equal to tens of milligrams per cubic meter, which can fully meet the requirements of conveying air reuse.

[0032] See the instructions attached 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, stripping machine 11 and other cotton processing equipment.

[0033] About dust removal workshop, then be used for installing bag dust collector workshop, for example centrifugal fan etc. of induced draft use can also be installed in dust removal workshop 7. In addition, induced draft fan 4 is usually installed outdoors in cotton processing production line.

[0034] In the embodiment of the present invention, the cotton processing production line uses wind circulation, and the circulation here can allow part of the conveying gas to participate in the circulation, part of it can be discharged directly, or it can be transported together to the process workshop, and the process workshop will discharge part of the mixed air in the process workshop without distinction.

[0035] 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 the cotton processing production line using seed cotton as raw material.

[0036] 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, it can be located outdoors or indoors.

[0037] It is common sense to connect the induced draft system to the predetermined process equipment on the cotton processing line. For example, it is connected to 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 to facilitate the transportation of materials and the separation of materials from the conveying gas. It is then connected to the outdoors through a pipeline.

[0038] 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 .

[0039] 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.

[0040] Figure 2 and Figure 3 In the illustrated structure, although one dust removal system is set outdoors and the other is set indoors, the return air design is exactly the same, and both use the return air duct 9 to return air.

[0041] 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.

[0042] 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 and separated from each other by a partition wall, and a return air outlet can be arranged on the partition wall.

[0043] 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 cause the dust removal workshop 7 to be in a positive pressure state. As mentioned above, the induced draft of the induced draft fan 4 will cause the process workshop to be in a negative pressure state. Under this condition, a pressure difference will occur between the dust removal workshop 7 and the process workshop, causing the conveyed gas to be returned to the process workshop. This method is a gravity flow method that utilizes pressure difference.

[0044] Even if the example of the dust removal workshop 7 is adopted, the outlet of the dust removal system can be directly connected to the process workshop by using the return air duct 9. Compared with the gravity method, the return air controllability of the forced return exhaust using the return air duct 9 is relatively better.

[0045] 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.

[0046] About bag dust collector, Figures 1 to 4 The 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.

[0047] 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 a 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 present utility model, they are only selected in this field, and no improvements are made to the bag dust collector, so they will not be repeated here.

[0048] 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 at this time. 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.

[0049] Furthermore, the bag 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 dust collector; the induced draft ducts corresponding to different types of process equipment are connected to different bag 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.

[0050] 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 shown as a partition wall with double rows of windows 3, that is, the partition wall is provided with double rows of windows, which connect the process workshop and the dust removal workshop 7 through the windows. In some embodiments, the partition wall can also be provided with an array of holes for connecting the process workshop and the dust removal workshop 7.

[0051] 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.

[0052] 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.

[0053] In order to avoid excessive accumulation of pollutants that are harmful to the human body due to internal circulation in the process workshop, 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 to replace part of the return air.

[0054] Furthermore, the exhaust fan is arranged on the top of the process workshop.

[0055] 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 of 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-powered 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 and the process workshop are connected. If the dust removal system is set up 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 dust collector.

4. The wind circulation workshop of the cotton processing production line according to claim 1, characterized in that: 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.

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, 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, 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, characterized in that: The process workshop is equipped 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.

9. The wind circulation workshop of the cotton processing production line according to claim 8, 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 preceding stage of the process equipment is equipped with a dryer, the induced air duct from the process equipment shall be installed with a dehumidifier.

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