Dust removal device for calcium carbonate powder production

Abstract

The utility model relates to the technical field of calcium carbonate powder production dust removal, and discloses a calcium carbonate powder production dust removal device which comprises a hollow filter cartridge and a sealing cover, one side of the filter cartridge is fixedly communicated with an air inlet pipe, and the sealing cover is arranged on one side of the filter cartridge. A connecting cylinder located in the filter cylinder is fixedly mounted on one side of the sealing cover, and a threaded bulge is arranged on the outer wall of the connecting cylinder; after the dust removal equipment is used for a period of time, a first filter screen and a second filter screen can be taken out by rotating a sealing cover, so that a worker can conveniently clean the first filter screen and the second filter screen subsequently, and meanwhile, a connecting cylinder can drive an annular scraping plate to move in a filter cylinder when moving; and therefore, the interior of the filter cartridge can be cleaned, residual dust can be scraped, the interior of the filter cartridge is prevented from being blocked, and the subsequent dust removal effect and the practicability of the whole device are improved.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal in the production of calcium carbonate powder, and in particular to a dust removal device for the production of calcium carbonate powder. Background Art

[0002] Calcium carbonate, an inorganic compound with the chemical formula CaCO₃, is a major component of limestone, marble, and other materials. During the processing of calcium carbonate powder, some dust is released from the processing equipment. If left untreated, this can seriously pollute the environment and affect human health. Therefore, calcium carbonate powder production requires a dust removal device. Due to the viscosity of calcium carbonate powder, dust easily accumulates on internal components of the dust removal equipment, such as filters, during the dust removal process. Over time, this can clog the equipment, reducing dust removal effectiveness and increasing the difficulty and cost of equipment maintenance, making it less practical. Utility Model Content

[0003] In order to solve the problems raised by the above background technology, the present application provides a dust removal device for producing calcium carbonate powder.

[0004] The present application provides a calcium carbonate powder production dust removal device that adopts the following technical solution:

[0005] A dust removal device for producing calcium carbonate powder, comprising a hollow filter cartridge and a sealing cover;

[0006] One side of the filter cartridge is fixedly connected to an air inlet pipe;

[0007] The sealing cover is arranged on one side of the filter cartridge, and a connecting cylinder located inside the filter cartridge is fixedly installed on one side of the sealing cover, a threaded protrusion is provided on the outer wall of the connecting cylinder, and a threaded groove that threadably cooperates with the threaded protrusion is opened at one end of the inner wall of the filter cartridge, and a first filter screen and a second filter screen are fixedly installed on the inner wall of the connecting cylinder, and a side of the connecting cylinder away from the sealing cover is fixedly connected to an annular scraper slidably arranged inside the filter cartridge through multiple connecting rods, and an air outlet pipe is fixedly connected to the side wall of the sealing cover.

[0008] Preferably, flanges are provided on the side walls of the air inlet pipe and the air outlet pipe.

[0009] Preferably, the annular scraper is arranged in a trapezoidal shape, and the annular scraper is in contact with the inner wall of the filter cartridge.

[0010] Preferably, a plurality of rubber protrusions are provided on the side wall of the sealing cover.

[0011] Preferably, the first filter screen is made of polypropylene filter screen material, and the second filter screen is made of fiber filter screen material.

[0012] In summary, this application has the following beneficial technical effects:

[0013] Compared with the existing technology, after the dust removal equipment has been used for a period of time, the first filter screen and the second filter screen can be removed by rotating the sealing cover, which makes it convenient for the staff to clean the first filter screen and the second filter screen later. At the same time, the connecting cylinder can drive the annular scraper to move inside the filter cylinder when it moves, so that the inside of the filter cylinder can be cleaned and the residual dust can be scraped off to avoid blockage inside the filter cylinder, thereby improving the subsequent dust removal effect and the practicality of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the application;

[0015] Figure 2 is a schematic cross-sectional view of a filter cartridge according to an embodiment of the present invention;

[0016] Figure 3 Schematic diagram of the structure of the thread protrusion and thread groove of the embodiment of the application;

[0017] Figure 4 It is a schematic structural diagram of the first filter and the second filter in the embodiment of the application.

[0018] Explanation of the accompanying drawings: 1. filter cartridge; 2. air inlet pipe; 3. sealing cover; 4. air outlet pipe; 5. flange; 6. rubber protrusion; 7. annular scraper; 8. connecting rod; 9. connecting cylinder; 10. threaded protrusion; 11. threaded groove; 12. first filter screen; 13. second filter screen. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application discloses a dust removal device for producing calcium carbonate powder. Figure 1-4A calcium carbonate powder production dust removal device includes a hollow filter cartridge 1 and a sealing cover 3. One side of the filter cartridge 1 is fixedly connected to an air inlet pipe 2. The sealing cover 3 is arranged on one side of the filter cartridge 1. A connecting cylinder 9 located inside the filter cartridge 1 is fixedly installed on one side of the sealing cover 3. A threaded protrusion 10 is provided on the outer wall of the connecting cylinder 9. A threaded groove 11 is provided at one end of the inner wall of the filter cartridge 1 to threadably cooperate with the threaded protrusion 10. A first filter screen 12 and a second filter screen 13 are fixedly installed on the inner wall of the connecting cylinder 9. The first filter screen 12 is made of polypropylene filter screen material. The second filter screen 13 is made of fiber filter screen material. The side of the connecting tube 9 away from the sealing cover 3 is fixedly connected to the annular scraper 7 slidably set inside the filter tube 1 through multiple connecting rods 8. The annular scraper 7 is trapezoidal in shape and fits the inner wall of the filter tube 1. The side wall of the sealing cover 3 is fixedly connected with the air outlet pipe 4. The side walls of the air inlet pipe 2 and the air outlet pipe 4 are both sleeved with flanges 5. The threads between the threaded protrusions 10 and the threaded grooves 11 can achieve self-locking. The thread self-locking condition depends on the spiral angle of the thread, the friction coefficient and the load it is subjected to. The thread self-locking condition can be calculated by the following formula: Self-locking condition = friction coefficient × tan (spiral angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above contents are all existing technologies, and in actual applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here.

[0021] When the filter is in use, the annular scraper 7 on the sealing cover 3 is inserted into the interior of the filter cartridge 1 from the right end thereof. When the connecting tube 9 contacts the right end of the filter cartridge 1, the sealing cover 3 and the connecting tube 9 can be installed on the filter cartridge 1 by rotating the sealing cover 3. The threaded protrusion 10 and the threaded groove 11 cooperate with each other. At the same time, the annular scraper 7 can also fit with the left end of the interior of the filter cartridge 1. The flange 5 on the air inlet pipe 2 can be connected to the external pipe, so that the dust generated during the production of calcium carbonate powder can enter the interior of the filter cartridge 1. The flange 5 on the air outlet pipe 4 can be connected to the external air pump. After starting the air pump, negative pressure will be generated in the filter cartridge 1. Then, the dust can enter the interior of the filter cartridge 1 through the air inlet pipe 2, and then the fine dust can be captured by the first filter screen 12 and the second filter screen 13. The dust is filtered and discharged through the outlet pipe 4. When the filter cartridge 1 is used for a period of time, the air outlet pipe 4 is disconnected from the external air pump and the sealing cover 3 is rotated in the opposite direction so that the connecting cylinder 9 can be separated from the interior of the filter cartridge 1. Then, the sealing cover 3 is pulled to drive the annular scraper 7 to move, thereby cleaning the interior of the filter cartridge 1 and scraping off the residual dust. At the same time, after the connecting cylinder 9 is taken out of the filter cartridge 1, it is also convenient for the staff to clean the first filter screen 12 and the second filter screen 13. In this process, after the dust removal equipment has been used for a period of time, the first filter screen 12 and the second filter screen 13 can be taken out by rotating the sealing cover 3, thereby facilitating the staff to subsequently clean the first filter screen 12 and the second filter screen 13. At the same time, when the connecting cylinder 9 moves, it can drive the annular scraper 7 to move inside the filter cartridge 1, thereby cleaning the interior of the filter cartridge 1 and scraping off the residual dust, avoiding clogging of the interior of the filter cartridge 1, thereby improving the subsequent dust removal effect and the practicality of the overall device.

[0022] Reference Figure 1 and Figure 2 A plurality of rubber protrusions 6 are provided on the side wall of the sealing cover 3 , which facilitate the staff to rotate the sealing cover 3 through the rubber protrusions 6 .

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0024] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0025] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0026] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dust removal device for producing calcium carbonate powder, characterized by: It comprises a hollow filter cartridge (1) and a sealing cover (3); One side of the filter cartridge (1) is fixedly connected to an air inlet pipe (2); The sealing cover (3) is arranged on one side of the filter cartridge (1), and a connecting cylinder (9) located inside the filter cartridge (1) is fixedly installed on one side of the sealing cover (3), a threaded protrusion (10) is provided on the outer wall of the connecting cylinder (9), and a threaded groove (11) threadedly matched with the threaded protrusion (10) is opened at one end of the inner wall of the filter cartridge (1), and a first filter screen (12) and a second filter screen (13) are fixedly installed on the inner wall of the connecting cylinder (9), and a side of the connecting cylinder (9) away from the sealing cover (3) is fixedly connected to an annular scraper (7) slidably arranged inside the filter cartridge (1) through multiple connecting rods (8), and an air outlet pipe (4) is fixedly connected to the side wall of the sealing cover (3).

2. A dust removal device for producing calcium carbonate powder according to claim 1, characterized in that: Flange plates (5) are sleeved on the side walls of the air inlet pipe (2) and the air outlet pipe (4).

3. A dust removal device for producing calcium carbonate powder according to claim 1, characterized in that: The annular scraper (7) is arranged in a trapezoidal shape, and the annular scraper (7) is in contact with the inner side wall of the filter cylinder (1).

4. A dust removal device for producing calcium carbonate powder according to claim 1, characterized in that: A plurality of rubber protrusions (6) are provided on the side wall of the sealing cover (3).

5. A dust removal device for producing calcium carbonate powder according to claim 1, characterized in that: The first filter screen (12) is made of a polypropylene filter screen material, and the second filter screen (13) is made of a fiber filter screen material.

Images