Dust removal equipment for producing hydroxypropyl methyl cellulose

Abstract

The utility model relates to the technical field of cellulose production equipment, and discloses dust removal equipment for producing hydroxypropyl methyl cellulose, which comprises a dust removal box, the cleaning assembly comprises a motor fixedly connected into the dust removal box, the output end of the motor is fixedly connected with a second rotating shaft, the bottom of the second rotating shaft is connected with a connecting block through a bearing, and the bottom of the connecting block is fixedly connected with an electric telescopic rod; after the filter screen is overturned to an angle suitable for cleaning, the cleaning brush is driven by the electric telescopic rod to move to the position of the filter screen, and then the motor drives the connecting block to rotate through the rotating shaft, so that the cleaning brush is driven to rotate to clean the filter screen; the utility model discloses a dust removal device for hydroxypropyl methyl cellulose, and solves the problems that the existing dust removal device for hydroxypropyl methyl cellulose cannot thoroughly remove attachments below a filter screen through a vibration mode, the filter screen is blocked by the residual attachments, and the filter screen needs to be detached for cleaning, which is troublesome.

Description

Technical Field

[0001] The utility model belongs to the technical field of cellulose production equipment, and specifically relates to dust removal equipment for producing hydroxypropyl methylcellulose. Background Art

[0002] Hydroxypropyl methylcellulose is a white powdery cellulose used as a thickener, dispersant, binder, excipient, oil-resistant coating, filler, emulsifier and stabilizer in the textile industry. It is also widely used in synthetic resins, petrochemicals, ceramics, papermaking, leather, medicine, food and cosmetics industries.

[0003] After searching, the Chinese patent "A dust removal device for the production of hydroxypropyl methylcellulose" has the authorization announcement number "CN 213469052 U". This patented technology can be opened when adding materials and closed after adding materials through the coordinated use of the partition, the pin shaft and the first spring, thereby reducing the upward overflow of dust; through the coordinated use of the metal shrapnel and the oscillator, the large particles of dust raised upward will slow down and fall downward after touching the metal shrapnel; through the coordinated use of the motor, the rotating shaft, the cam, the convex ball, the connecting rod, the second spring and the filter net, the dust attached to the filter net can be fallen off, thereby preventing the dust from clogging the filter net.

[0004] Although the patented technology solves the problem that a large amount of dust is easily generated when the production device is fed, the dust easily pollutes the environment and mechanical equipment and reduces the service life of the production equipment. At the same time, the dust contains a certain amount of production materials, and direct discharge causes a decrease in the utilization rate of production materials. However, the patented technology drives the shaft to rotate through a motor, and the shaft drives the cam to rotate. The cam hits the convex ball, causing the convex ball to move up and down, and the convex ball drives the connecting rod to move up and down. The connecting rod drives the filter to vibrate up and down, so that the dust material attached to the bottom of the filter falls off and returns to the feed through the recovery pipe. However, the adhesion of cotton materials is strong, and the attachments under the filter cannot be completely removed by vibration. These residual attachments will cause the filter to be blocked, and the filter needs to be removed for cleaning, which is more troublesome. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a dust removal device for producing hydroxypropyl methylcellulose, which has the advantages of cleaning the attachments under the filter screen by a cleaning brush without disassembling the filter screen, and solves the problem that the existing dust removal equipment for hydroxypropyl methylcellulose cannot completely remove the attachments under the filter screen by vibration, and these residual attachments may cause the filter screen to be blocked, requiring the filter screen to be disassembled for cleaning, which is relatively troublesome.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose of cleaning the attached objects under the filter screen by a cleaning brush without disassembling the filter screen, the utility model provides the following technical solutions:

[0009] A dust removal device for producing hydroxypropyl methylcellulose.

[0010] As a preferred embodiment of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model:

[0011] A dust removal device for producing hydroxypropyl methylcellulose comprises a dust removal box; a cleaning component, wherein the cleaning component comprises a motor fixedly connected in the dust removal box, the output end of the motor is fixedly connected to a second rotating shaft, the bottom of the second rotating shaft is connected to a connecting block via a bearing, the bottom of the connecting block is fixedly connected to an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected to a connecting piece, and two cleaning brushes are fixedly connected in the connecting piece and are axially symmetrically distributed relative to the connecting piece.

[0012] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: two filter screens are embedded and installed in the dust removal box, the cleaning brush is located above the filter screen, and connecting grooves are provided in the filter screen and the dust removal box, the two connecting grooves are arranged in communication, and a connecting plate is provided in the connecting groove.

[0013] Based on the above technical features: by pulling the connecting plate out of the connecting groove, the two filter screens can be separated at an inclined angle to facilitate cleaning of attachments on the surface of the filter screens.

[0014] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: a first rotating shaft is arranged in the filter screen, and the filter screen is rotatably connected in the dust removal box through the first rotating shaft.

[0015] Based on the above technical features: this allows the filter to be rotated through the first rotating shaft to an angle suitable for cleaning, and the inclination angle of the filter can allow the cleaned attachments to fall into the discharge hopper due to gravity, and will not re-attach to the surface of the filter.

[0016] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: a fixing ring is fixedly connected to the surface of the dust removal box, a discharge hopper is fixedly connected to the bottom of the dust removal box, and a recovery pipe is embedded and installed at the bottom of the discharge hopper.

[0017] Based on the above technical features: this can make the cleaned attachments re-enter the feed bin through the recovery pipe, so that these attachments can be reused and the production cost can be saved.

[0018] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: a card slot is opened in the dust removal box, a card block is arranged in the card slot, and the bottom of the card block is fixedly connected to the surface of the discharge hopper.

[0019] Based on the above technical features: this can make the disassembly of the dust removal box and the discharge hopper more convenient, by removing the discharge hopper, so as to facilitate the reset of the inclined filter from the bottom of the dust removal box.

[0020] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: an exhaust fan is embedded in the dust removal box, an exhaust pipe is arranged on the top of the exhaust fan, and the exhaust fan is located above the filter screen.

[0021] Based on the above technical features: the exhaust fan is used to drive the dust air in the dust removal box to flow, so that the dust air is filtered through the filter net, and then the filtered dust air is discharged through the exhaust pipe above the exhaust fan.

[0022] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: the dust removal box is fixedly connected to the feed bin through a fixing ring, a dust removal fan is arranged on the top of the dust removal box, a dust suction pipe is arranged in the dust removal fan, the other end of the dust suction pipe is fixedly connected to the dust suction hood located in the feed bin, a dust exhaust pipe is arranged in the dust removal fan, and the other end of the dust exhaust pipe is located below the filter.

[0023] Based on the above technical features: the dust removal fan will suck out the dust air generated in the feed bin through the dust suction pipe and the dust suction hood, and discharge it into the dust removal box through the dust exhaust pipe to prevent the dust air from floating into the air and affecting the environment.

[0024] As a preferred solution of the dust removal equipment for producing hydroxypropyl methylcellulose described in the utility model: a feeding hopper is arranged on one side of the feed bin, a feeding port corresponding to the feeding hopper is opened on one side of the feed bin, a third rotating shaft is rotatably connected in the feeding port, and a baffle is rotatably connected in the feeding port through the third rotating shaft.

[0025] Based on the above technical features: after the feeding is completed, the baffle will block the feeding port to prevent the dust air generated in the feed bin from floating into the air through the feeding port.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the utility model provides a dust removal device for producing hydroxypropyl methylcellulose, which has the following beneficial effects:

[0028] 1. After the filter is flipped to a suitable angle for cleaning, the cleaning brush is driven to move to the position of the filter by the electric telescopic rod. After that, the motor drives the connecting block to rotate through the rotating shaft, thereby driving the cleaning brush to rotate to clean the filter. This solves the problem that the existing hydroxypropyl methylcellulose dust removal equipment cannot completely remove the attachments under the filter by vibration. These residual attachments will cause the filter to be blocked, and the filter needs to be removed for cleaning, which is more troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0031] Figure 3 It is a cross-sectional schematic diagram of the dust removal box of the utility model;

[0032] Figure 4 for Figure 2 A magnified view of middle;

[0033] Figure 5 for Figure 3 Enlarged view of B.

[0034] In the figure: 1. dust removal box; 11. filter screen; 111. connecting groove; 112. connecting plate; 113. first rotating shaft; 12. fixing ring; 13. discharge hopper; 131. recovery pipe; 14. slot; 15. block; 2. cleaning assembly; 21. motor; 22. second rotating shaft; 23. connecting block; 24. electric telescopic rod; 25. connecting piece; 26. cleaning brush; 3. exhaust fan; 31. exhaust pipe; 4. feed bin; 5. dust removal fan; 51. dust suction pipe; 511. dust suction hood; 52. dust discharge pipe; 6. feeding hopper; 61. feeding port; 62. third rotating shaft; 63. baffle. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0037] A dust removal device for producing hydroxypropyl methylcellulose comprises a dust removal box 1; a cleaning component 2, wherein the cleaning component 2 comprises a motor 21 fixedly connected to the dust removal box 1, wherein the output end of the motor 21 is fixedly connected to a second rotating shaft 22, wherein the bottom of the second rotating shaft 22 is connected to a connecting block 23 via a bearing, wherein the bottom of the connecting block 23 is fixedly connected to an electric telescopic rod 24, wherein the bottom of the electric telescopic rod 24 is fixedly connected to a connecting piece 25, wherein two cleaning brushes 26 are fixedly connected to the connecting piece 25 and are axially symmetrically distributed relative to the connecting piece 25.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, two filters 11 are embedded and installed in the dust box 1, and the cleaning brush 26 is located above the filter 11. A connecting groove 111 is provided in the filter 11 and the dust box 1, and the two connecting grooves 111 are connected and arranged, and a connecting plate 112 is provided in the connecting groove 111. A first rotating shaft 113 is provided in the filter 11, and the filter 11 is rotatably connected to the dust box 1 through the first rotating shaft 113. A fixing ring 12 is fixedly connected to the surface of the dust box 1, and a discharge hopper 13 is fixedly connected to the bottom of the dust box 1. A recovery pipe 131 is embedded and installed at the bottom of the discharge hopper 13, and a card slot 14 is provided in the dust box 1, and a card slot 14 is provided in the card slot 14. A card block 15 is provided, and the bottom of the card block 15 is fixedly connected to the surface of the discharge hopper 13. By pulling out the connecting plate 112 from the connecting groove 111, the filter screen 11 will be turned downward by gravity and under the restriction of the first rotating shaft 113, and the filter screen 11 can be cleaned. After cleaning, the discharge hopper 13 can be disassembled by separating the card block 15 from the card groove 14. Thereafter, the two filter screens 11 are pushed upward from the bottom of the dust removal box 1 until the two filter screens 11 are fitted together, and then the connecting plate 112 is inserted into the connecting groove 111, and the filter screen 11 can be reset so that it can continue to perform dust removal work.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an exhaust fan 3 is embedded in the dust removal box 1, and an exhaust pipe 31 is arranged on the top of the exhaust fan 3. The exhaust fan 3 is located above the filter screen 11. The dust removal box 1 is fixedly connected to the feed bin 4 through a fixing ring 12. A dust removal fan 5 is arranged on the top of the dust removal box 1. A dust suction pipe 51 is arranged in the dust removal fan 5. The other end of the dust suction pipe 51 is fixedly connected to a dust suction hood 511 located in the feed bin 4. A dust exhaust pipe 52 is arranged in the dust removal fan 5. The other end of the dust exhaust pipe 51 is fixedly connected to a dust suction hood 511 located in the feed bin 4. A dust exhaust pipe 52 is arranged in the dust removal fan 5. The other end of the dust exhaust pipe 52 is located below the filter screen 11. When the dust removal fan 5 discharges the dusty air into the dust removal box 1 through the dust exhaust pipe 52, the exhaust fan 3 is turned on. The exhaust fan 3 will drive the air in the dust removal box 1 to flow, thereby driving the dusty air entering the dust removal box 1 to flow upward and filter the dusty air through the filter screen 11. The filtered dusty air will be discharged through the exhaust pipe 31 above the exhaust fan 3, thereby preventing the dusty air from affecting the environment.

[0040] like Figure 2 and Figure 4 As shown, a feeding hopper 6 is provided on one side of the feeding bin 4, and a feeding port 61 corresponding to the feeding hopper 6 is opened on one side of the feeding bin 4. A third rotating shaft 62 is rotatably connected to the feeding port 61, and a baffle 63 is rotatably connected to the feeding port 61 through the third rotating shaft 62. The baffle 63 will rotate through the third rotating shaft 62. When feeding, the baffle 63 will be opened by the squeezing of the material to facilitate the feeding work. When the feeding is completed, the baffle 63 is at a vertical angle to block the feeding port 61 to prevent dust air from floating into the air through the feeding port 61.

[0041] When the utility model is in use, the dust removal fan 5 will suck in the dust air through the dust suction pipe 51 and the dust suction hood 511, and discharge it into the dust removal box 1 through the dust discharge pipe 52. Afterwards, the exhaust fan 3 will drive the air in the dust removal box 1 to flow, thereby driving the dust air entering the dust removal box 1 to flow upward, and filter the dust air through the filter screen 11, and the filtered dust air will be discharged through the exhaust pipe 31 above the exhaust fan 3. After the dust removal work is completed, the connecting plate 112 can be pulled out, and when the filter screen 11 is flipped to an angle suitable for cleaning, the cleaning brush 26 is driven by the electric telescopic rod 24 to move to the position of the filter screen 11, and then the motor 21 will drive the connecting block 23 to rotate through the second rotating shaft 22, and the rotating connecting block 23 will drive the electric telescopic rod 24 and the connecting piece 25 to rotate, thereby driving the cleaning brush 26 to rotate, and the filter screen 11 is cleaned, and the cleaned attachments will be discharged back into the feed bin 4 through the discharge hopper 13 and the recovery pipe 131.

[0042] It should be noted that the dust removal box 1, motor 21, electric telescopic rod 24, exhaust fan 3 and dust removal fan 5 in the above description are all relatively mature devices in the existing technology. The specific models can be selected according to actual needs. At the same time, the motor 21, electric telescopic rod 24 and dust removal fan 5 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for producing hydroxypropyl methylcellulose, characterized in that: include: Dust removal box (1); A cleaning assembly (2), the cleaning assembly (2) comprising a motor (21) fixedly connected to a dust removal box (1), the output end of the motor (21) being fixedly connected to a second rotating shaft (22), the bottom of the second rotating shaft (22) being connected to a connecting block (23) via a bearing, the bottom of the connecting block (23) being fixedly connected to an electric telescopic rod (24), the bottom of the electric telescopic rod (24) being fixedly connected to a connecting piece (25), and two cleaning brushes (26) being fixedly connected inside the connecting piece (25) and being axially symmetrically distributed with respect to the connecting piece (25).

2. A dust removal device for producing hydroxypropyl methylcellulose as claimed in claim 1, characterized in that: Two filter screens (11) are embedded and installed in the dust removal box (1); the cleaning brush (26) is located above the filter screen (11); the filter screen (11) and the dust removal box (1) are both provided with connecting grooves (111); the two connecting grooves (111) are arranged in communication; and a connecting plate (112) is arranged in the connecting grooves (111).

3. A dust removal device for producing hydroxypropyl methylcellulose as claimed in claim 2, characterized in that: A first rotating shaft (113) is arranged in the filter screen (11), and the filter screen (11) is rotatably connected to the dust removal box (1) via the first rotating shaft (113).

4. A dust removal device for producing hydroxypropyl methylcellulose according to claim 1, characterized in that: A fixing ring (12) is fixedly connected to the surface of the dust removal box (1), a discharge hopper (13) is fixedly connected to the bottom of the dust removal box (1), and a recovery pipe (131) is embedded and installed at the bottom of the discharge hopper (13).

5. A dust removal device for producing hydroxypropyl methylcellulose according to claim 1, characterized in that: A card slot (14) is provided in the dust removal box (1), a card block (15) is provided in the card slot (14), and the bottom of the card block (15) is fixedly connected to the surface of the discharge hopper (13).

6. A dust removal device for producing hydroxypropyl methylcellulose according to claim 1, characterized in that: An exhaust fan (3) is embedded in the dust removal box (1), an exhaust pipe (31) is provided on the top of the exhaust fan (3), and the exhaust fan (3) is located above the filter screen (11).

7. A dust removal device for producing hydroxypropyl methylcellulose according to claim 1, characterized in that: The dust removal box (1) is fixedly connected to the feed bin (4) via a fixing ring (12); a dust removal fan (5) is arranged on the top of the dust removal box (1); a dust suction pipe (51) is arranged inside the dust removal fan (5); the other end of the dust suction pipe (51) is fixedly connected to a dust suction hood (511) located inside the feed bin (4); a dust exhaust pipe (52) is arranged inside the dust removal fan (5); the other end of the dust exhaust pipe (52) is located below the filter screen (11).

8. A dust removal device for producing hydroxypropyl methylcellulose as claimed in claim 7, characterized in that: A feeding hopper (6) is arranged on one side of the feeding bin (4), a feeding port (61) corresponding to the feeding hopper (6) is opened on one side of the feeding bin (4), a third rotating shaft (62) is rotatably connected inside the feeding port (61), and a baffle (63) is rotatably connected inside the feeding port (61) via the third rotating shaft (62).

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