Impurity filtering equipment for ammonium bicarbonate production

Abstract

The utility model relates to the technical field of ammonium bicarbonate production, and discloses an impurity filtering device for ammonium bicarbonate production, which comprises a tank body, a feeding pipeline arranged on the side surface of the tank body, a discharging pipe arranged at the bottom of the tank body, and a filtering structure arranged in the tank body, a mounting frame is arranged at the bottom of the mounting ring, and a filter screen is attached to the mounting frame; a rotating shaft is coaxially arranged in the tank body, the upper end of the rotating shaft extends out of the tank body, a driving motor for electrically driving the rotating shaft to rotate is arranged at the top of the tank body, the lower part of the rotating shaft extends to the filter screen, and a stirring mechanism for stirring on the surface of the filter screen is arranged on the outer side of the rotating shaft. According to the utility model, filtered residues can be prevented from staying on the filter screen and can be collected in a centralized manner, so that the filtering efficiency of the filter screen on an ammonium bicarbonate solution is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonium bicarbonate production, in particular to impurity filtering equipment for ammonium bicarbonate production. Background Art

[0002] The ammonium bicarbonate solution is filtered through a filter press to remove large debris and prevent it from entering the next process and contaminating the finished product.

[0003] The application number 201821819571.8 disclosed an impurity filtering device for ammonium bicarbonate production, including a barrel, a feeding port is provided on the top of the barrel, a discharge port is provided on the bottom of the barrel, a bevel bucket and a filter frame are provided inside the barrel, a mounting groove is provided on the inner side wall of the barrel, the side of the filter frame is fixedly connected with the mounting groove, a connecting rod and a semicircular frame are provided inside the filter frame, and both ends of the connecting rod are fixed to the filter frame. Although the utility model has a simple structure, the shape of the filter screen can be changed by making the filter screen foldable, which is convenient for cleaning impurities on the filter screen, preventing the filter screen from being damaged, and improving the cleaning efficiency. However, during the filtering process, the filtered residue will stay on the plane of the filter screen and block the entire filter screen, so the filter screen needs to be cleaned frequently, affecting the efficiency of ammonium bicarbonate filtration production. Utility Model Content

[0004] The utility model aims to provide an impurity filtering device for ammonium bicarbonate production, so as to solve the problem in the above-mentioned background technology that during the filtering process, the filtered residue will stay on the plane of the filter screen and block the entire filter screen, so that the filter screen needs to be cleaned frequently, which affects the efficiency of ammonium bicarbonate filtering production.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impurity filtering device for ammonium bicarbonate production, comprising a tank body, a feed pipe is arranged on the side of the tank body, a discharge pipe is arranged at the bottom of the tank body, a filtering structure is arranged inside the tank body, the filtering structure comprises a mounting ring, a mounting frame is arranged at the bottom of the mounting ring, and a filter screen is attached to the mounting frame;

[0006] A rotating shaft is coaxially arranged inside the tank body, and the upper end of the rotating shaft extends out of the tank body. A driving motor for rotating the electric rotating shaft is arranged on the top of the tank body. The lower part of the rotating shaft extends to the filter screen, and a flipping mechanism for flipping on the surface of the filter screen is arranged on the outer side of the rotating shaft.

[0007] Furthermore, the flipping mechanism includes a mounting sleeve, a support rod extending to the side of the filter screen is arranged on the outer side of the mounting sleeve, and an inclined rod attached to the surface of the filter screen is arranged at one end of the support rod away from the mounting sleeve.

[0008] Furthermore, a scraper is provided on one side of the tilting rod away from the mounting sleeve, and a brush is provided on the end surface of the scraper facing the filter screen.

[0009] Furthermore, the upper end of the scraper is inclined toward the rotation direction of the mounting sleeve.

[0010] Furthermore, the mounting frame includes a support ring and a connecting rod, the support ring is coaxially installed below the mounting ring, the diameter of the support ring is smaller than the diameter of the mounting ring, and the connecting rods are provided in multiple groups, and both ends of the multiple groups of connecting rods are respectively connected to the mounting ring and the support ring.

[0011] Furthermore, the bottom opening of the tank body is provided, a bottom plate is sealedly installed at the bottom opening of the tank body, the discharge pipe is installed on the bottom plate, and one end of the discharge pipe passes through the bottom plate and extends into the interior of the tank body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model can prevent filtered residues from staying on the filter net by arranging a turning mechanism which can turn over the filter net inside the tank body, and can collect the filtered residues in a centralized manner, thereby improving the filtering efficiency of the filter net on the ammonium bicarbonate solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an impurity filtering device for ammonium bicarbonate production according to the utility model;

[0015] Figure 2 This is a cross-sectional view of an impurity filtering device for ammonium bicarbonate production according to the utility model;

[0016] Figure 3 This is a structural schematic diagram of a mounting frame of an impurity filtering device for ammonium bicarbonate production installed below a mounting ring according to the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of the installation sleeve and the support rod connection point of the impurity filtering equipment for ammonium bicarbonate production.

[0018] In the figure: 1. tank body; 11. feed pipe; 12. discharge pipe; 13. bottom plate; 2. rotating shaft; 3. driving motor; 4. mounting ring; 41. mounting frame; 411. connecting rod; 412. supporting ring; 42. filter screen; 5. flipping mechanism; 51. mounting sleeve; 52. supporting rod; 53. tilting rod; 54. scraper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution: an impurity filtering device for ammonium bicarbonate production, comprising a tank body 1, a feed pipe 11 is arranged on the side of the tank body 1, a discharge pipe 12 is arranged at the bottom of the tank body 1, a filtering structure is arranged inside the tank body 1, and the filtering structure comprises a mounting ring 4, a mounting frame 41 is arranged at the bottom of the mounting ring 4, and a filter screen 42 is attached to the mounting frame 41;

[0021] A rotating shaft 2 is coaxially arranged inside the tank body 1, and the upper end of the rotating shaft 2 extends out of the tank body 1. A driving motor 3 for rotating the electric rotating shaft 2 is arranged on the top of the tank body 1. The lower part of the rotating shaft 2 extends to the filter screen 42, and a flipping mechanism 5 for flipping on the surface of the filter screen 42 is arranged on the outer side of the rotating shaft 2.

[0022] In the utility model, during the ammonium bicarbonate production process, the ammonium bicarbonate solution is first transported to the upper part of the tank body 1 through the feed pipe 11, and then the ammonium bicarbonate solution is dropped downward through the filter screen 42 under the action of gravity, and the impurities in the ammonium bicarbonate solution are filtered out on the filter screen 42, so that the ammonium bicarbonate solution can be made purer. By arranging a flipping mechanism 5 that can flip on the filter screen 42 inside the tank body 1, it is possible to avoid the filtered residues from staying on the filter screen 42, and the filtered residues can be collected in a centralized manner, thereby improving the filtering efficiency of the filter screen 42 for the ammonium bicarbonate solution.

[0023] Furthermore, the flipping mechanism 5 includes a mounting sleeve 51 , a support rod 52 extending to the side of the filter 42 is disposed on the outer side of the mounting sleeve 51 , and a tilting rod 53 attached to the surface of the filter 42 is disposed at one end of the support rod 52 away from the mounting sleeve 51 .

[0024] Furthermore, a scraper 54 is provided on a side of the tilt rod 53 away from the mounting sleeve 51 , and a brush is provided on the end surface of the scraper 54 facing the filter screen 42 .

[0025] Furthermore, the upper end of the scraper 54 is inclined toward the rotation direction of the mounting sleeve 51 .

[0026] Furthermore, the mounting frame 41 includes a support ring 412 and a connecting rod 411. The support ring 412 is coaxially installed below the mounting ring 4. The diameter of the support ring 412 is smaller than the diameter of the mounting ring 4. The connecting rod 411 is provided in multiple groups, and the two ends of the multiple groups of connecting rods 411 are respectively connected to the mounting ring 4 and the support ring 412.

[0027] Furthermore, the bottom opening of the tank body 1 is provided, and a bottom plate 13 is sealed and installed at the bottom opening of the tank body 1 . The discharge pipe 12 is installed on the bottom plate 13 , and one end of the discharge pipe 12 passes through the bottom plate 13 and extends into the interior of the tank body 1 .

[0028] Working principle: By arranging a mounting frame 41 having an isosceles trapezoidal side view on the outer side of the filter screen 42, the filter screen 42 can be conveniently supported and installed on one side of the mounting frame 41. After the filter screen 42 filters the residue inside the ammonium bicarbonate solution, the scraper 54 scrapes the residue downward from the side of the filter screen 42, so that the residue is gathered in the middle of the filter screen 42, which will not affect the filtering effect of the side of the filter screen 42, can reduce the cleaning frequency of the filter screen 42, and improve the efficiency of filtering the ammonium bicarbonate solution.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An impurity filtering device for ammonium bicarbonate production, comprising a tank body (1), a feed pipe (11) is arranged on the side of the tank body (1), a discharge pipe (12) is arranged at the bottom of the tank body (1), and a filtering structure is arranged inside the tank body (1), characterized in that: The filtering structure comprises a mounting ring (4), a mounting frame (41) is provided at the bottom of the mounting ring (4), and a filtering net (42) is attached and mounted on the mounting frame (41); A rotating shaft (2) is coaxially arranged inside the tank body (1), the upper end of the rotating shaft (2) extends out of the tank body (1), a driving motor (3) for rotating the electric rotating shaft (2) is arranged on the top of the tank body (1), the lower part of the rotating shaft (2) extends to the filter screen (42), and a flipping mechanism (5) for flipping on the surface of the filter screen (42) is arranged on the outer side of the rotating shaft (2).

2. An impurity filtering device for ammonium bicarbonate production according to claim 1, characterized in that: The flipping mechanism (5) comprises a mounting sleeve (51), the outer side of the mounting sleeve (51) is provided with a support rod (52) extending to the side of the filter screen (42), and the end of the support rod (52) away from the mounting sleeve (51) is provided with a tilting rod (53) attached to the surface of the filter screen (42).

3. An impurity filtering device for ammonium bicarbonate production according to claim 2, characterized in that: A scraper (54) is provided on the side of the tilting rod (53) away from the mounting sleeve (51), and a brush is provided on the end surface of the scraper (54) facing the filter screen (42).

4. An impurity filtering device for ammonium bicarbonate production according to claim 3, characterized in that: The upper end of the scraper (54) is arranged to be inclined toward the rotation direction of the mounting sleeve (51).

5. An impurity filtering device for ammonium bicarbonate production according to claim 1, characterized in that: The mounting frame (41) comprises a support ring (412) and a connecting rod (411); the support ring (412) is coaxially mounted below the mounting ring (4); the diameter of the support ring (412) is smaller than the diameter of the mounting ring (4); and a plurality of groups of connecting rods (411) are provided, with the two ends of the plurality of groups of connecting rods (411) respectively connected to the mounting ring (4) and the support ring (412).

6. The impurity filtering equipment for ammonium bicarbonate production according to claim 1, characterized in that: The bottom opening of the tank body (1) is provided, and a bottom plate (13) is sealedly installed at the bottom opening of the tank body (1), and the discharge pipe (12) is installed on the bottom plate (13), and one end of the discharge pipe (12) passes through the bottom plate (13) and extends into the interior of the tank body (1).

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