Efficient device for catching powder by cloth bag

Abstract

The utility model discloses an efficient device for catching powder by a cloth bag, which relates to the field of milk powder processing and comprises a bearing support, a powder catching box is fixedly mounted at the top of the bearing support, a feed port communicated with an inner cavity of the powder catching box is fixedly mounted on one side of the powder catching box, and a discharge port communicated with the inner cavity of the powder catching box is fixedly mounted at the bottom of the powder catching box. A negative pressure pipe communicated with an inner cavity of the powder catching box is fixedly mounted at the top of the powder catching box; according to the efficient cloth bag powder catching device, low air pressure is provided for the interior of the powder catching box through a negative pressure pipe, fine powder is sucked into the powder catching box through a feeding port and filtered through a filter cartridge and a filter bag, the fine powder is attached to the surfaces of the filter cartridge and the filter bag, a power piece drives a back-flushing air baffle to move to the position above the filter cartridge, and when an electromagnet works and a partition block attracts the fine powder, the fine powder is filtered through the filter cartridge and the filter bag. The high-pressure pump works to fill high-pressure air into an inner cavity of the backflushing air baffle through the air guide pipe, the high-pressure air in the backflushing air baffle is injected into the filter cartridge, and gathered fine powder is blown down to the bottom of the powder catching box.

Description

Technical Field

[0001] The utility model relates to milk powder processing technology, and particularly relates to an efficient device for powder collection by cloth bags. Background Art

[0002] Milk powder is a powdered product obtained by removing moisture from milk or other animal milk. It is made by dehydrating milk, usually by evaporating the moisture in milk through dehydration technology, leaving a powder of milk solids.

[0003] The production process of milk powder generally includes the following steps:

[0004] Milk collection and storage: Fresh milk is collected from cows or other dairy animals and stored at an appropriate temperature to prevent the growth of bacteria and the deterioration of milk quality.

[0005] Dehydration: The milk is dehydrated through dehydration technology, such as spray drying or drum drying, to evaporate its moisture, leaving a powder of milk solids. This process is usually carried out at high temperature to ensure rapid evaporation of moisture.

[0006] Sterilization: To ensure the safety and long-term preservation of milk powder, it is usually sterilized to kill possible bacteria and microorganisms.

[0007] Packaging: The processed milk powder is packed into a sealed package to prevent the entry of moisture and contaminants and extend its shelf life.

[0008] Milk powder is a convenient dairy product because it can be stored for a long time, is easy to store and transport, and can be reconstituted into milk or other dairy products by adding water at any time. It is widely used globally, and its uses include infant formula, adult nutritional supplements, food processing, etc.

[0009] When producing instant milk powder, in order to eliminate fine powder and form hollow agglomerated particles, mainly two methods of centrifugal spraying and pressure spraying are adopted. The proportion of large and medium-sized particles in the milk powder produced by centrifugal spraying and pressure spraying is basically the same. For particles of 20 - 50um in centrifugal spraying, it accounts for 51.5%, while in pressure spraying it accounts for 49.8%, with a difference of only 1.7%. For particles of 50 - 75um in centrifugal spraying, it accounts for 22.5%, and in pressure spraying it accounts for 20.3%, with a difference of only 2.2%. The difference is relatively large for small particles below 25um. For small particles below 25um in centrifugal spraying, it accounts for 9.2%, while in pressure spraying, small particles below 25um account for 23%, with a difference of 13.8%. For the production of whole-fat instant milk powder, particles of 50 - 2504um, preferably 100 - 200um, are required. Therefore, regardless of which spraying form is used, the recovery of fine powder is needed.

[0010] For powder collection with a cloth bag, it is necessary for workers to enter the tower to shake the bag manually. When people enter the tower, the negative pressure inside the tower becomes unstable, affecting the powder collection efficiency. When manually shaking the bag, the fine powder on the cloth bag cannot be evenly shaken off, sometimes more and sometimes less, which will cause powder accumulation and blockage at the lower part. The amount of powder sent back to the tower for granulation is also sometimes more and sometimes less, resulting in uneven particles. Summary of the Invention

[0011] The purpose of the present utility model is to provide an efficient device for powder collection with a cloth bag to solve the above deficiencies in the prior art.

[0012] To achieve the above purpose, the present utility model provides the following technical solution: An efficient device for powder collection with a cloth bag, including a bearing bracket, a powder collection box is fixedly installed on the top of the bearing bracket, a feed inlet communicated with the inner cavity of the powder collection box is fixedly installed on one side of the powder collection box, a discharge port communicated with the inner cavity of the powder collection box is fixedly installed at the bottom of the powder collection box, a negative pressure pipe communicated with the inner cavity of the powder collection box is fixedly installed on the top of the powder collection box, and further includes:

[0013] A driving component, which is installed in the inner cavity of the powder collection box;

[0014] A filtering component, which is installed on one side of the inner cavity of the powder collection box;

[0015] A power component, which is fixedly installed on the top of the powder collection box, and the power component can drive the driving component to rotate;

[0016] A high-pressure pump, which is fixedly installed on one side of the top of the powder collection box.

[0017] Further, the driving component includes:

[0018] A connecting plate, which is fixedly installed at the output end of the power component through a coupling, and the connecting plate is located in the inner cavity of the powder collection box;

[0019] A plurality of connecting shafts, which are fixedly installed at the bottom of the connecting plate in a circumferential array;

[0020] An air vent shaft, which is fixedly installed at the bottom of the plurality of connecting shafts;

[0021] A gas guide housing, the top of which is rotatably connected to the bottom of the connecting plate, the bottom of which is rotatably connected to the top of the air vent shaft, and the inner side of which is slidably connected to the outer sides of the plurality of connecting shafts;

[0022] A transmission shaft, which is fixedly installed at the bottom of the air vent shaft through a coupling.

[0023] Further, a gas guide pipe communicated with the inner cavity of the gas guide housing is fixedly installed on one side of the gas guide housing, the other end of the gas guide pipe is fixedly connected to the bottom of the high-pressure pump, the inner cavity of the gas guide housing is communicated with the inner cavity of the air vent shaft, and a backflush air baffle communicated with the inner cavity of the air vent shaft is fixedly installed on one side of the air vent shaft.

[0024] Further, the filtering component includes:

[0025] A partition is fixedly mounted on the inner cavity of the powder catching box. The partition divides the inner cavity of the powder catching box into two upper and lower cavities. The outer side of the ventilation shaft passes through the partition and extends to the bottom of the partition. The outer side of the ventilation shaft is sealed and rotatably connected to the penetration point of the partition.

[0026] A plurality of filter cartridges are fixedly mounted on the bottom of the partition in a circumferential array, and the inner cavity of the filter cartridges passes through the partition;

[0027] A plurality of filter bags are movably mounted on the bottom of the filter cartridge in a one-to-one correspondence.

[0028] Furthermore, an electromagnet is fixedly installed at the bottom of the connecting plate, a spring is sleeved on the outside of the electromagnet, the top of the spring is fixedly connected to the bottom of the connecting plate, and a partition block is fixedly installed at the bottom of the spring. The partition block can move upward by overcoming the elastic force of the spring under the attraction of the electromagnet.

[0029] Furthermore, the driving assembly further includes:

[0030] A fixed sleeve, which is fixedly installed on the outside of the transmission shaft;

[0031] A side scraper is fixedly mounted on the outside of the fixed sleeve, and one side of the side scraper is slidably connected to the side wall of the inner cavity of the powder collecting box;

[0032] A shift lever, which is fixedly installed on the top of one side of the side scraper;

[0033] The upper scraper is fixedly mounted on the top of the side scraper, and the top of the upper scraper is slidably connected to the bottom of the partition.

[0034] Compared with the prior art, the utility model provides a high-efficiency bag-type powder catching device, which provides low air pressure in the powder catching box through a negative pressure pipe, sucks the fine powder into the powder catching box through the feed port and filters it through the filter cartridge and filter bag. The fine powder adheres to the surface of the filter cartridge and the filter bag, and the power part drives the recoil air baffle to move above the filter cartridge. While the electromagnet works to suck up the partition block, the high-pressure pump works to inject high-pressure gas into the inner cavity of the recoil air baffle through the air guide pipe. The high-pressure air in the recoil air baffle is injected into the filter cartridge. The filter bag moves downward under the action of the high-pressure gas, and blows the accumulated fine powder to the bottom of the powder catching box to prevent the fine powder from accumulating and blocking the filter cartridge and the filter bag, thereby achieving uniform powder shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0036] Figure 1 Schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0037] Figure 2 Schematic cross-sectional view of the overall structure provided by an embodiment of the present utility model;

[0038] Figure 3 First schematic cross-sectional view of a partial structure provided by an embodiment of the present utility model;

[0039] Figure 4 Second schematic cross-sectional view of a partial structure provided by an embodiment of the present utility model.

[0040] Explanation of reference numerals:

[0041] 1, bearing bracket; 2, powder collection box; 3, discharge port; 4, feed port; 5, drive assembly; 6, filtration assembly; 7, power component; 8, high-pressure pump; 9, negative pressure pipe; 51, backflush air baffle; 52, air guide housing; 521, air guide pipe; 53, ventilation shaft; 54, transmission shaft; 55, fixed sleeve; 56, side scraper; 561, lever; 562, upper scraper; 57, connecting plate; 571, connecting shaft; 572, electromagnet; 573, spring; 574, partition block; 61, partition board; 62, filter cylinder; 63, filter bag. Detailed implementation manners

[0042] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0043] Embodiment 1:

[0044] Please refer to Figure 1 - Figure 4 , a high-efficiency device for bag-type powder collection, including a bearing bracket 1, a powder collection box 2 fixedly installed on the top of the bearing bracket 1, a feed port 4 fixedly installed on one side of the powder collection box 2 and communicating with its inner cavity, a discharge port 3 fixedly installed on the bottom of the powder collection box 2 and communicating with its inner cavity, a negative pressure pipe 9 fixedly installed on the top of the powder collection box 2 and communicating with its inner cavity, and further including:

[0045] A drive assembly 5, which is installed in the inner cavity of the powder collection box 2;

[0046] A filtration assembly 6, which is installed on one side of the inner cavity of the powder collection box 2;

[0047] A power component 7, which is fixedly installed on the top of the powder collection box 2, and the power component 7 can drive the drive assembly 5 to rotate;

[0048] A high-pressure pump 8, which is fixedly installed on one side of the top of the powder collection box 2.

[0049] The specific implementation method is as follows: The negative pressure pipe 9 discharges the gas in the powder collection box 2 to maintain a negative pressure state in the powder collection box 2. The power component 7 includes but is not limited to a stepping motor, which is electrically connected to an external power supply and is also controlled by an external PLC programming program. The high-pressure pump 8 is an air pump, which is electrically connected to an external power supply and is also controlled by an external PLC programming program. The bottom of the inner cavity of the powder collection box 2 is arc-shaped, and the discharge port 3 is communicated with the lowest point of the inner cavity of the powder collection box 2. The feed port 4 penetrates through the side wall of the powder collection box 2 and is located below the partition plate 61.

[0050] The drive assembly 5 includes:

[0051] A connecting plate 57, which is fixedly installed at the output end of the power component 7 through a coupling, and the connecting plate 57 is located inside the powder collection box 2;

[0052] A plurality of connecting shafts 571, which are fixedly installed at the bottom of the connecting plate 57 in a circumferential array;

[0053] An air vent shaft 53, which is fixedly installed at the bottom of a plurality of connecting shafts 571;

[0054] A gas guide housing 52, whose top is rotatably connected to the bottom of the connecting plate 57, whose bottom is rotatably connected to the top of the air vent shaft 53, and whose inner side is slidably connected to the outer sides of a plurality of connecting shafts 571;

[0055] A transmission shaft 54, which is fixedly installed at the bottom of the air vent shaft 53 through a coupling.

[0056] A gas guide pipe 521 is fixedly installed on one side of the gas guide housing 52 and is communicated with its inner cavity. The other end of the gas guide pipe 521 is fixedly connected to the bottom of the high-pressure pump 8. The inner cavity of the gas guide housing 52 is communicated with the inner cavity of the air vent shaft 53. An anti-recoil air baffle 51 is fixedly installed on one side of the air vent shaft 53 and is communicated with its inner cavity.

[0057] The specific implementation method is as follows: The power component 7 drives the connecting plate 57 to rotate. The connecting plate 57 drives the air vent shaft 53 at the bottom of the connecting shaft 571 to rotate. The anti-recoil air baffle 51 rotates with the air vent shaft 53 until the bottom of the anti-recoil air baffle 51 is located above the top of a certain filter cartridge 62. The gas guide housing 52 remains stationary, and the connecting shaft 571 connects the connecting plate 57 and the air vent shaft 53 together.

[0058] The filter assembly 6 includes:

[0059] A partition plate 61, which is fixedly installed in the inner cavity of the powder collection box 2. The partition plate 61 divides the inner cavity of the powder collection box 2 into upper and lower cavities. The outer side of the air vent shaft 53 penetrates through the partition plate 61 and extends to the bottom of the partition plate 61, and the outer side of the air vent shaft 53 is sealingly and rotatably connected to the penetration part of the partition plate 61;

[0060] A plurality of filter cartridges 62, which are fixedly installed at the bottom of the partition plate 61 in a circumferential array, and the inner cavity of the filter cartridge 62 penetrates through the partition plate 61;

[0061] A plurality of filter bags 63 are respectively and movably installed at the bottom of the filter cylinder 62 in one-to-one correspondence.

[0062] An electromagnet 572 is fixedly installed at the bottom of the connecting plate 57. A spring 573 is sleeved outside the electromagnet 572. The top of the spring 573 is fixedly connected to the bottom of the connecting plate 57. A partition block 574 is fixedly installed at the bottom of the spring 573. The partition block 574 can move upward against the elastic force of the spring 573 under the attraction of the electromagnet 572.

[0063] The specific implementation method is as follows: The end of the filter bag 63 can move upward along the inner wall of the filter cylinder 62 under the action of negative pressure. The end size of the filter bag 63 is smaller than the inner wall size of the filter cylinder 62. When the lower part of the backwashing air baffle 51 is located at the top of the filter cylinder 62, the electromagnet 572 is activated. Under the magnetic attraction of the electromagnet 572, the partition block 574 moves upward against the elastic force of the spring 573. The inner cavity of the air guide housing 52 is connected to the inner cavity of the backwashing air baffle 51. The high-pressure air of the high-pressure pump 8 is poured into the inner cavity of the filter cylinder 62, pushing the filter bag 63 downward and pushing the filter bag 63 out of the inner wall of the filter cylinder 62. The fine powder on the filter cylinder 62 and the filter bag 63 is blown off. The electromagnet 572 is electrically connected to the internal power supply and is also controlled by the internal PLC programming program.

[0064] The driving assembly 5 further includes:

[0065] A fixed sleeve 55 is fixedly installed outside the transmission shaft 54;

[0066] A side scraping plate 56 is fixedly installed outside the fixed sleeve 55, and one side of the side scraping plate 56 is slidably connected to the inner cavity side wall of the powder collection box 2;

[0067] A dial rod 561 is fixedly installed at the top of one side of the side scraping plate 56;

[0068] An upper scraping plate 562 is fixedly installed at the top of the side scraping plate 56, and the top of the upper scraping plate 562 is slidably connected to the bottom of the partition plate 61.

[0069] The specific implementation method is as follows: The power component 7 works to drive the transmission shaft 54 to rotate. The transmission shaft 54 drives the side scraping plate 56 connected to the outside of the fixed sleeve 55 to rotate. The side scraping plate 56 and the upper scraping plate 562 on its top rotate to scrape off the fine powder adsorbed on the inner wall of the powder collection box 2 and the bottom of the partition plate 61. The dial rod 561 is an elastic rod, and the elastic rod can bounce to the adjacent filter cylinder 62 when leaving one filter cylinder 62, separating the fine powder of the filter cylinder 62 in a vibrating manner.

[0070] Working principle: When in use, the air mixed with fine powder enters the inner cavity of the powder catching box 2 through the feed port 4, and the negative pressure provided by the negative pressure pipe 9 filters the air mixed with fine powder through the filter assembly 6, and the fine powder is filtered and retained at the bottom of the filter assembly 6. The filtered air is discharged through the negative pressure pipe 9 to maintain the stability of the negative pressure formed in the powder catching box 2. The end of the filter bag 63 can move upward along the inner wall of the filter cylinder 62 under the action of negative pressure. The end size of the filter bag 63 is smaller than the inner wall size of the filter cylinder 62. When the bottom of the recoil baffle 51 is located at the top of the filter cylinder 62, the electromagnet 572 is started, and under the magnetic attraction of the electromagnet 572, the partition block 574 overcomes the elastic force of the spring 573 and moves upward, and the inner cavity of the air guide housing 52 and the recoil baffle 51 are connected. The inner cavities are connected, and the high-pressure air of the high-pressure pump 8 is poured into the inner wall of the filter cylinder 62, pushing the filter bag 63 to move downward, pushing the filter bag 63 out of the inner wall of the filter cylinder 62, and blowing away the fine powder on the filter cylinder 62 and the filter bag 63. The power piece 7 drives the transmission shaft 54 to rotate, and the transmission shaft 54 drives the side scraper 56 connected to the outside of the fixed sleeve 55 to rotate. The side scraper 56 and the upper scraper 562 on its top rotate to scrape off the fine powder adsorbed on the inner wall of the powder catching box 2 and the bottom of the partition 61. The lever 561 is an elastic rod. The elastic rod can bounce to the adjacent filter cylinder 62 when it detaches from one filter cylinder 62, and the fine powder in the filter cylinder 62 is detached in a vibrating manner. The fine powder falls to the bottom of the inner cavity of the powder catching box 2 and is discharged from the powder catching box 2 through the discharge port 3.

[0071] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An efficient device for collecting powder with a cloth bag, comprising a bearing bracket (1), a powder collection box (2) is fixedly installed at the top of the bearing bracket (1), a feed inlet (4) communicated with the inner cavity of the powder collection box (2) is fixedly installed on one side of the powder collection box (2), a discharge port (3) communicated with the inner cavity of the powder collection box (2) is fixedly installed at the bottom of the powder collection box (2), a negative pressure pipe (9) communicated with the inner cavity of the powder collection box (2) is fixedly installed at the top of the powder collection box (2), characterized in that, Further included are: A driving component (5), which is installed inside the powder collection box (2); A filtering component (6), which is installed on one side inside the powder collection box (2); A power component (7), which is fixedly installed on the top of the powder collection box (2), and the power component (7) can drive the driving component (5) to rotate; A high-pressure pump (8), which is fixedly installed on one side of the top of the powder collection box (2).

2. The high-efficiency device for collecting powder by cloth bag according to claim 1, characterized in that The driving component (5) includes: A connecting plate (57), which is fixedly installed at the output end of the power component (7) through a coupling, and the connecting plate (57) is located inside the powder collection box (2); A plurality of connecting shafts (571), which are fixedly installed at the bottom of the connecting plate (57) in a circumferential array; An air vent shaft (53), which is fixedly installed at the bottom of the plurality of connecting shafts (571); A gas guide housing (52), the top of which is rotatably connected to the bottom of the connecting plate (57), the bottom of which is rotatably connected to the top of the air vent shaft (53), and the inner side of which is slidably connected to the outer sides of the plurality of connecting shafts (571); A transmission shaft (54), which is fixedly installed at the bottom of the air vent shaft (53) through a coupling.

3. The high-efficiency device for capturing powder with a cloth bag according to claim 2, characterized in that, One side of the gas guide housing (52) is fixedly installed with a gas guide pipe (521) communicated with its inner cavity, the other end of the gas guide pipe (521) is fixedly connected to the bottom of the high-pressure pump (8), the inner cavity of the gas guide housing (52) is communicated with the inner cavity of the air vent shaft (53), and one side of the air vent shaft (53) is fixedly installed with a backflush air baffle (51) communicated with its inner cavity.

4. The high-efficiency device for capturing powder by cloth bag according to claim 3, characterized in that, The filtering component (6) includes: A partition plate (61), which is fixedly installed inside the powder collection box (2), the partition plate (61) divides the inner cavity of the powder collection box (2) into upper and lower cavities, the outer side of the air vent shaft (53) penetrates through the partition plate (61) and extends to the bottom of the partition plate (61), and the outer side of the air vent shaft (53) is sealingly and rotatably connected to the penetration part of the partition plate (61); A plurality of filter cylinders (62), which are fixedly installed at the bottom of the partition plate (61) in a circumferential array, and the inner cavity of the filter cylinder (62) penetrates through the partition plate (61); A plurality of filter bags (63), which are respectively movably installed at the bottom of the filter cylinders (62) in one-to-one correspondence.

5. The high-efficiency device for capturing powder with a cloth bag according to claim 2, wherein, An electromagnet (572) is fixedly installed at the bottom of the connecting plate (57), a spring (573) is sleeved outside the electromagnet (572), the top of the spring (573) is fixedly connected to the bottom of the connecting plate (57), and a partition block (574) is fixedly installed at the bottom of the spring (573), and the partition block (574) can move upward against the elastic force of the spring (573) under the attraction of the electromagnet (572).

6. The high-efficiency device for powder collection by cloth bag according to claim 1, characterized in that, The driving component (5) further includes: A fixed sleeve (55), which is fixedly installed on the outer side of the transmission shaft (54); A side scraper (56), which is fixedly installed on the outer side of the fixed sleeve (55), and one side of the side scraper (56) is slidably connected to the inner cavity side wall of the powder collection box (2); A dial rod (561), which is fixedly installed at the top of one side of the side scraper (56); An upper scraper (562), which is fixedly installed at the top of the side scraper (56), and the top of the upper scraper (562) is slidably connected to the bottom of the partition plate (61).

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