Gas-solid separation device for preparing ammonium bicarbonate

Abstract

The invention discloses a gas-solid separation device for preparing ammonium bicarbonate, and relates to the technical field of ammonium bicarbonate preparation. Comprising an outer shell, two connecting shells are fixedly connected in the outer shell, an inner shell is fixedly connected in the outer shell, the inner shell is fixedly connected with the connecting shell on one side, and an arc-shaped filter screen is fixedly connected to the position, close to the connecting shell on the other side, of the inner shell; the electric sliding rail is installed in the outer shell, a sliding block on the electric sliding rail is fixedly connected with a gas collecting piece, and the gas collecting piece is fixedly connected and communicated with two exhaust pieces; the two first electric rotating shafts are mounted on the inner shell and are jointly and rotationally connected with filter cloth. Powder in waste gas is collected through the filter cloth, the collected powder is dried through heat in the waste gas, on one hand, additional drying treatment does not need to be conducted on the powder subsequently, waste gas treatment steps are reduced, on the other hand, heat in the waste gas is reused, and the energy utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of ammonium carbonate preparation, and in particular to a gas-solid separation device for preparing ammonium bicarbonate. Background Art

[0002] Ammonium bicarbonate (abbreviated as ammonium bicarbonate) is one of the main additives in the production of expanded foods. It can be used as a raw material for leavening agents for bread, biscuits, pancakes, etc., and is also used as a raw material for foaming powdered fruit juice. The existing industry usually adopts the carbonization method (i.e., carbon dioxide is introduced into ammonia water to react to form ammonium bicarbonate) to produce ammonium bicarbonate. After the ammonium bicarbonate is produced, it needs to be centrifuged and dried to produce ammonium bicarbonate powder.

[0003] Hot air is usually used to dry ammonium carbonate. During the drying process, a part of the ammonium carbonate powder is discharged along with the wind flow, resulting in the loss of the ammonium carbonate. A cyclone separator is usually used to separate and collect the ammonium carbonate powder in the drying waste gas. Since the ammonium carbonate powder in the waste gas is not fully dried, an additional drying step is required after the ammonium carbonate powder is collected, which makes the operation steps cumbersome. At the same time, the heat in the drying waste gas cannot be reused, resulting in heat waste. Summary of the invention

[0004] The invention provides a gas-solid separation device for preparing ammonium bicarbonate, so as to overcome the disadvantages of complicated steps and waste of heat in the existing waste gas when treating the dry waste gas.

[0005] The technical solution is as follows: A gas-solid separation device for preparing ammonium bicarbonate, comprising: an outer shell, two connecting shells are fixedly connected in the outer shell, an inner shell is fixedly connected in the outer shell, the inner shell is fixedly connected to the connecting shell on one side, and an arc-shaped filter is fixedly connected to the position of the inner shell close to the connecting shell on the other side; an electric slide rail is installed in the outer shell, the slider on the electric slide rail is fixedly connected to a gas collecting part, the gas collecting part is fixedly connected to and connected to two exhaust parts, a suction element is installed in the gas collecting part, and the gas collecting part and the exhaust part both slide along the surface of the arc-shaped filter; two first electric rotating shafts are installed on the inner shell and are connected to the filter cloth for common rotation; a collecting barrel is sealed and rotatably connected in the outer shell, the inner shell and the arc-shaped filter are both sealed and matched with the collecting barrel, a notch is provided on the collecting barrel, a stepping motor is installed in the outer shell, and the output shaft of the stepping motor is fixedly connected to the collecting barrel.

[0006] Furthermore, the two exhaust components are respectively located on both sides of the gas collecting component, and the extension lines of the opening directions of the two exhaust components pass through the arc-shaped filter screen and are respectively located on both sides of the central axis of the arc-shaped filter screen.

[0007] Furthermore, it also includes: two second electric rotating shafts, both of which are rotatably connected to the inner shell body and are located on the inner side of the filter cloth, and the two second electric rotating shafts are jointly wound with a sealing sheet, and the sealing sheet is provided with a rectangular through hole; an exhaust frame is fixedly connected to the rectangular through hole of the sealing sheet, and the exhaust frame is in contact with the filter cloth on one side close to the arc filter.

[0008] Furthermore, it also includes: a lower connecting member, which is fixed to the inner side of the exhaust frame, an upper connecting member is fixed to the side of the exhaust frame away from the lower connecting member, the lower connecting member and the upper connecting member are commonly fixed with an impact magnetic rod, and the impact magnetic rod collides and cooperates with the filter cloth; a mounting frame, which is fixed to the side of the inner shell body close to the blocking piece, and a plurality of first magnetic rods and a plurality of second magnetic rods are fixed to the mounting frame, the plurality of first magnetic rods and the plurality of second magnetic rods are staggered, and the first magnetic rods and the second magnetic rods are both magnetically matched with the impact magnetic rod.

[0009] Furthermore, the sum of the length of the lower connecting member and the length of the upper connecting member is greater than the height of the exhaust frame.

[0010] Furthermore, a plurality of V-shaped grooves are provided on a side of the upper connecting member away from the blocking piece, and a weight bar is fixedly connected to the upper connecting member.

[0011] Furthermore, it also includes: a lower shielding member, which is sealingly rotatably connected to the inner shell body, and the lower shielding member is in contact and cooperation with the filter cloth; an upper shielding member, which is fixed to a side of the inner shell body away from the lower shielding member, and the upper shielding member is in contact with the filter cloth, and the lower shielding member and the upper shielding member are both located on a side of the filter cloth away from the collecting cylinder.

[0012] Furthermore, it also includes: a guide member, which is sealingly rotatably connected to a side of the inner shell body close to the collecting cylinder, the guide member is located between the filter cloth and the collecting cylinder, and the guide member is in contact with the filter cloth; a two-way cylinder, which is limitedly slidably connected to the inner shell body, and the two telescopic ends of the two-way cylinder are rotatably connected to the guide member and the lower shielding member respectively.

[0013] Furthermore, it also includes: a guide sheet fixedly connected to a side of the inner shell body close to the guide member, the guide sheet is located between the guide member and the filter cloth, and the guide sheet is extrusion-fitted with the guide member.

[0014] Furthermore, a spherical protrusion is provided at a position where the guide piece contacts the guide member and a position where the upper shielding member contacts the filter cloth, for reducing friction when the guide piece and the guide member and the upper shielding member and the filter cloth slide relative to each other.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: the present invention collects powder in the exhaust gas through the filter cloth, and uses the heat in the exhaust gas to dry the collected powder. On the one hand, there is no need for subsequent additional drying treatment of the powder, which reduces the steps of exhaust gas treatment. On the other hand, the heat in the exhaust gas is reused to improve energy utilization; a sealing plate is used to block the flow area of ​​the exhaust gas, thereby increasing the speed of the exhaust gas passing through the filter cloth, and then the powder adhered to the surface of the filter cloth is recoiled and removed; the filter cloth is knocked by moving the impact magnetic rod to promote the shedding of dust adhered to the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting shell, the inner shell and the arc filter screen of the present invention;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the electric slide rail, the air collecting member and the exhaust member of the present invention;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the arc filter screen, the exhaust member and the air extraction element of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the gas collecting member, the gas exhaust member and the gas extraction element of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the filter cloth, the exhaust frame and the lower connecting piece of the present invention;

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the sealing piece, the exhaust frame and the mounting frame of the present invention;

[0023] Figure 8 The present invention is attached Figure 6 The enlarged view of point A in the middle;

[0024] Fig. 9 It is a three-dimensional structural cross-sectional view of the lower shielding member, the guide member and the guide sheet of the present invention;

[0025] Fig.10 The present invention is attached Figure 4 Enlarged view of point B in the middle.

[0026] Markings in the accompanying drawings: 1-outer shell, 2-connecting shell, 3-inner shell, 4-arc filter screen, 5-electric slide rail, 6-gas collecting part, 7-exhaust part, 8-exhaust element, 9-first electric rotating shaft, 10-filter cloth, 11-collecting cylinder, 111-notch, 12-stepping motor, 13-second electric rotating shaft, 14-sealing plate, 15-exhaust frame, 16-lower connecting part, 17-upper connecting part, 171-V-groove, 18-impact magnetic rod, 19-mounting frame, 20-first magnetic rod, 21-second magnetic rod, 22-weight bar, 23-lower shielding part, 24-upper shielding part, 25-guide part, 26-bidirectional cylinder, 27-guide plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] A gas-solid separation device for preparing ammonium bicarbonate, see Figure 1-Figure 5 , including: an outer shell 1, two connecting shells 2 are fixedly connected in the outer shell 1, an inner shell 3 is fixedly connected in the outer shell 1, the inner shell 3 is fixedly connected to the connecting shell 2 on one side, and an arc filter 4 is fixedly connected to the position of the inner shell 3 near the connecting shell 2 on the other side; an electric slide rail 5 is installed in the outer shell 1, and the slider on the electric slide rail 5 is fixedly connected to an air collecting member 6, and the air collecting member 6 is fixedly connected and connected to two exhaust members 7, and an air extraction element 8 is installed in the air collecting member 6, and the air collecting member 6 and the exhaust member 7 both slide along the surface of the arc filter 4; two first electric rotating shafts 9, mounted on the inner shell 3, and connected to the filter cloth 10 for common rotation; the collecting cylinder 11, sealed and rotatably connected to the outer shell 1, the inner shell 3 and the arc filter 4 are both sealed with the collecting cylinder 11, a notch 111 is provided on the collecting cylinder 11, the outer shell 1 is installed with a stepper motor 12, and the output shaft of the stepper motor 12 is fixedly connected to the collecting cylinder 11; the two exhaust members 7 are respectively located on both sides of the gas collecting member 6, and the extension lines of the opening directions of the two exhaust members 7 pass through the arc filter 4 and are respectively located on both sides of the central axis of the arc filter 4.

[0029] The above scheme aims to solve the problem that when the dry waste gas generated in the existing ammonium carbonate production process is treated, the steps of collecting ammonium carbonate powder and additionally drying it are cumbersome, and the heat in the dry waste gas is wasted; this scheme collects the powder in the waste gas through the filter cloth 10, and uses the heat in the waste gas to dry the collected powder. On the one hand, there is no need for subsequent additional drying treatment of the powder, which reduces the steps of waste gas treatment. On the other hand, the heat in the waste gas is reused, which improves the utilization rate of energy.

[0030] The center of the circle corresponding to the electric slide rail 5 is located on the central axis of the arc filter 4, which is used to keep the air collecting component 6 and the exhaust component 7 in contact with the arc filter 4 at all times; the position where the air collecting component 6 and the exhaust component 7 contact the arc filter 4 can be provided with an arc surface, which is used to reduce the friction between the air collecting component 6 and the exhaust component 7 and the arc filter 4; the inner shell 3, the inner side of the arc filter 4 and the filter cloth 10 form a drying chamber; flexible magnetic strips can be provided on the edges of the front and rear sides of the filter cloth 10 to adsorb the edges of the filter cloth 10 to the inner shell 3 to prevent the exhaust gas from passing through the gap between the filter cloth 10 and the inner shell 3, resulting in the filter cloth 10 being unable to play a filtering role; a layer of absorbent material can be provided on the inner side of the filter cloth 10 to reduce the moisture contained in the exhaust gas, so as to facilitate the subsequent use of the heat in the exhaust gas to dry the powder.

[0031] See also Figure 3 , Figure 4 and Figure 6 , and also includes: two second electric rotating shafts 13, both of which are rotatably connected to the inner shell body 3 and are both located on the inner side of the filter cloth 10, and the two second electric rotating shafts 13 are jointly wound with a blocking piece 14, and the blocking piece 14 is provided with a rectangular through hole; an exhaust frame 15, which is fixed to the rectangular through hole of the blocking piece 14, and the exhaust frame 15 is in contact with the filter cloth 10 on one side close to the arc filter screen 4.

[0032] In the above scheme, the purpose is to use the blocking piece 14 to block the flow area of ​​the exhaust gas, increase the speed of the exhaust gas when passing through the right side of the filter cloth 10, and then recoil and remove the powder adhered to the right side of the filter cloth 10; the blocking piece 14 is made of an airtight and flexible material, and the two second electric shafts 13 can be replaced by an electric shaft, a shaft with a torsion spring, saving costs; the edge of the right side of the exhaust frame 15 is set to an arc shape, which is convenient for the exhaust frame 15 to slide along the surface of the filter cloth 10.

[0033] See also Figure 6-Figure 8 , also includes: a lower connecting piece 16, which is fixed to the inner side of the exhaust frame 15, and an upper connecting piece 17 is fixed to the side of the exhaust frame 15 away from the lower connecting piece 16, and the lower connecting piece 16 and the upper connecting piece 17 are jointly fixed with an impact magnetic rod 18, and the impact magnetic rod 18 collides and cooperates with the filter cloth 10; a mounting frame 19, which is fixed to the side of the inner shell 3 close to the blocking piece 14, and a plurality of first magnetic rods 20 and a plurality of second magnetic rods 21 are fixed to the mounting frame 19, and the plurality of first magnetic rods 20 and the plurality of second magnetic rods 21 are staggered. The first magnetic rods 20 and the second magnetic rods 21 are both magnetically matched with the impact magnetic rod 18; the sum of the length of the lower connecting piece 16 and the length of the upper connecting piece 17 is greater than the height of the exhaust frame 15; a plurality of V-shaped grooves 171 are provided on the side of the upper connecting piece 17 away from the blocking piece 14, and a weight bar 22 is fixed to the upper connecting piece 17.

[0034] In the above scheme, the filter cloth 10 is struck by the movement of the impact magnetic bar 18, so as to promote the falling off of the dust adhering to the filter cloth 10; the lower connecting piece 16 and the upper connecting piece 17 are both made of elastic materials, and when the impact magnetic bar 18 is subjected to the rightward magnetic repulsion force given by the first magnetic bar 20, the impact magnetic bar 18 drives the lower connecting piece 16 and the upper connecting piece 17 to deform together, until the impact magnetic bar 18 passes over the position where the lower connecting piece 16 and the upper connecting piece 17 are fixed to the exhaust frame 15, and then the impact magnetic bar 18 quickly moves to the right and strikes the right side of the filter cloth 10 under the dual action of the elastic action of the lower connecting piece 16 and the upper connecting piece 17 and the magnetic repulsion force, so that the filter cloth 10 The right side of the filter cloth 10 vibrates, thereby promoting the shedding of dust adhered to the right side of the filter cloth 10; the first magnetic bar 20 repels the impact magnetic bar 18, and the second magnetic bar 21 attracts the impact magnetic bar 18; the weight bar 22 is made of a material with high density and is not affected by magnetic force. Under the gravity of the weight bar 22, the upper connecting member 17 is always in a bent state, which is convenient for controlling the deformation direction of the upper connecting member 17 when the impact magnetic bar 18 moves; the V-shaped groove 171 on the upper connecting member 17 can make the impact magnetic bar 18 encounter greater resistance when moving to the right, and less resistance when the impact magnetic bar 18 is reset to the left, which is convenient for the impact magnetic bar 18 to reset under the magnetic attraction given by the second magnetic bar 21.

[0035] The working principle of the above scheme is as follows: when the ammonium carbonate powder is dried, the exhaust gas generated by the drying enters the inner shell 3 through the connecting shell 2 on the left, and the exhaust gas first passes through the left side of the filter cloth 10, and the left side of the filter cloth 10 intercepts the ammonium carbonate powder in the exhaust gas (when the amount of powder adhering to the left side of the filter cloth 10 is large, the first electric shaft 9 is started to exchange the left and right sides of the filter cloth 10), and the clean exhaust gas passes through the left side of the filter cloth 10 and then enters the filter cloth 10. At this time, the exhaust gas is blocked by the blocking piece 14, so that The exhaust gas can only continue to flow to the right through the gap between the sealing piece 14 and the filter cloth 10 and the exhaust frame 15 (at this time, the second electric shaft 13 starts and rotates reciprocatingly, driving the exhaust frame 15 to move up and down, so that the impact magnetic rod 18 intermittently contacts the first magnetic rod 20 and the second magnetic rod 21, and the magnetic force is used to control the impact magnetic rod 18 to knock on the right side of the filter cloth 10). When the exhaust gas passes through the right side of the filter cloth 10, the exhaust gas will blow off the powder adhered to the right side of the filter cloth 10, and the exhaust gas and the powder enter the drying chamber together.

[0036] After the exhaust gas enters the drying chamber, the electric slide rail 5 and the exhaust element 8 are started, and the electric slide rail 5 drives the air collecting piece 6 and the exhaust piece 7 to move back and forth. The exhaust element 8 sucks the exhaust gas in the drying chamber into the air collecting piece 6 (the function of the arc filter 4 is to limit the powder in the drying chamber), and the exhaust gas in the air collecting piece 6 is blown out through the two exhaust pieces 7. The airflow blown out by the exhaust piece 7 enters the drying chamber and makes the airflow in the drying chamber turbulent, and at the same time blows off the powder adhering to the inner side of the arc filter 4, and the airflow in the drying chamber blows up the powder accumulated at the bottom of the arc filter 4, so that the powder is dispersed and flows in the drying chamber. After the exhaust gas passes through the filter cloth 10, it contacts the powder in the drying chamber and transfers heat to the powder, so that the moisture in the powder passes through the arc filter 4 together with the exhaust gas and is discharged At the same time, the exhaust gas in the drying chamber is continuously discharged into the outer shell 1 through the arc filter 4, and is discharged through the connecting shell 2 on the right. After the carbon ammonium powder is completely dried and no exhaust gas is generated, the electric slide rail 5 is stopped and the power of the exhaust element 8 is controlled to be reduced. At the same time, the stepper motor 12 is started to rotate the collecting cylinder 11 until the notch 111 is connected to the drying chamber, and the stepper motor 12 is stopped. At this time, the airflow in the drying chamber drives the powder to flow along the inner wall of the drying chamber. When the powder passes through the notch 111, a part of the powder enters the collecting cylinder 11. After all the powder in the drying chamber enters the collecting cylinder 11, the exhaust element 8 is stopped, and the collecting cylinder 11 is driven by the stepper motor 12 to rotate and reset. At this time, the powder collected in the collecting cylinder 11 is discharged through the notch 111.

[0037] See also Figure 3 , Figure 4 , Fig. 9 and Fig.10 , and also includes: a lower shielding member 23, which is sealingly rotatably connected to the inner shell body 3, and the lower shielding member 23 is in contact with the filter cloth 10; an upper shielding member 24, which is fixed to a side of the inner shell body 3 away from the lower shielding member 23, and the upper shielding member 24 is in contact with the filter cloth 10, and the lower shielding member 23 and the upper shielding member 24 are both located on a side of the filter cloth 10 away from the collecting cylinder 11.

[0038] In the above scheme, the purpose is to improve the sealing between the filter cloth 10 and the inner shell 3 to prevent the exhaust gas from flowing through the gap between the inner shell 3 and the filter cloth 10; the upper shielding member 24 is made of elastic material, and under the action of its own elastic force, the end of the upper shielding member 24 always keeps in contact with the filter cloth 10; there is a gap between the lower side of the filter cloth 10 and the inner shell 3.

[0039] See also Fig. 9 , and also includes: a guide member 25, which is sealed and rotatably connected to one side of the inner shell 3 close to the collecting cylinder 11, the guide member 25 is located between the filter cloth 10 and the collecting cylinder 11, and the guide member 25 is in contact with the filter cloth 10; a two-way cylinder 26, which is limitedly slidably connected to the inner shell 3, and the two telescopic ends of the two-way cylinder 26 are respectively rotatably connected to the guide member 25 and the lower shielding member 23.

[0040] In the above scheme, the edge of the drying chamber is made smooth by the guide 25, so that the powder can be moved under the action of the air flow; the vertical section of the upper part of the guide 25 is arc-shaped, and the upper side of the guide 25 is attached to the right side of the filter cloth 10. The air flow blown out by the exhaust member 7 contacts the arc-shaped filter screen 4 and flows along the inner side of the arc-shaped filter screen 4, blowing the powder accumulated on the lower side of the arc-shaped filter screen 4, so that the powder moves along the guide 25 and rises; the bidirectional cylinder 26 can control the position of the lower shielding member 23 and the guide 25, and when the filter cloth 10 rotates , the powder adhered to the left side of the filter cloth 10 may fall off. At this time, the lower shielding member 23 swings and loses contact with the filter cloth 10, limiting the powder on the filter cloth 10 from falling to the right side of the lower shielding member 23. At the same time, the two telescopic ends of the two-way cylinder 26 shrink at the same time and control the lower shielding member 23 and the guide member 25 to lose contact with the filter cloth 10, so that the lower shielding member 23 swings to release the blockage of the gap between the filter cloth 10 and the inner shell 3. At this time, a part of the exhaust gas flows through the gap between the filter cloth 10 and the inner shell 3, and enters the drying chamber with the fallen powder.

[0041] See also Fig. 9 , and also includes: a guide sheet 27, which is fixed to one side of the inner shell 3 close to the guide member 25, the guide sheet 27 is located between the guide member 25 and the filter cloth 10, and the guide sheet 27 is squeezed and fitted with the guide member 25; a spherical protrusion is provided at a position where the guide sheet 27 contacts the guide member 25 and a position where the upper shielding member 24 contacts the filter cloth 10, for reducing the friction force when the guide sheet 27 and the guide member 25 and the upper shielding member 24 and the filter cloth 10 slide relative to each other.

[0042] In the above scheme, the purpose is to guide the powder between the filter cloth 10 and the inner shell 3 to quickly enter the drying chamber through the guide sheet 27; the guide sheet 27 is made of elastic material, and the guide sheet 27 is initially in a deformation and force storage state, that is, during the swinging process of the guide member 25, the guide sheet 27 can always maintain contact with the guide member 25 under the action of its own elasticity; under the flow of exhaust gas, the powder falling on the filter cloth 10 is guided into the drying chamber.

[0043] The working principle of the above scheme is as follows: before the filter cloth 10 rotates, the two telescopic ends of the two-way cylinder 26 shrink at the same time and control the lower shielding member 23 and the guide member 25 to swing together, so that the lower shielding member 23 and the guide member 25 lose contact with the filter cloth 10. At this time, the filter cloth 10 is controlled to rotate. In this process, a part of the exhaust gas on the left side of the inner shell 3 flows to the right through the gap between the filter cloth 10 and the inner shell 3, and carries the powder that falls into the inner shell 3 along the guide sheet 27 to the drying chamber. After the filter cloth 10 stops rotating, the two-way cylinder 26 works again and makes the lower shielding member 23 and the guide member 25 contact the filter cloth 10 again.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A gas-solid separation device for preparing ammonium bicarbonate, characterized in that: include: An outer shell (1), wherein two connecting shells (2) are fixedly connected inside the outer shell (1), an inner shell (3) is fixedly connected inside the outer shell (1), the inner shell (3) is fixedly connected to the connecting shell (2) on one side, and an arc-shaped filter screen (4) is fixedly connected to a position of the inner shell (3) close to the connecting shell (2) on the other side; An electric slide rail (5) is installed in the outer shell (1); a slider on the electric slide rail (5) is fixedly connected to an air collecting member (6); the air collecting member (6) is fixedly connected to and communicates with two exhaust members (7); an air extraction element (8) is installed in the air collecting member (6); the air collecting member (6) and the exhaust member (7) both slide along the surface of the arc-shaped filter screen (4); Two first electric rotating shafts (9) are mounted on the inner housing (3) and are connected to the filter cloth (10) for common rotation; The collecting cylinder (11) is connected to the outer shell (1) in a sealed and rotatable manner. The inner shell (3) and the arc-shaped filter (4) are both sealed and matched with the collecting cylinder (11). A notch (111) is provided on the collecting cylinder (11). The outer shell (1) is equipped with a stepping motor (12). The output shaft of the stepping motor (12) is fixedly connected to the collecting cylinder (11).

2. A gas-solid separation device for preparing ammonium bicarbonate according to claim 1, characterized in that: The two exhaust members (7) are respectively located on both sides of the gas collecting member (6); the extension lines of the opening directions of the two exhaust members (7) pass through the arc-shaped filter screen (4) and are respectively located on both sides of the central axis of the arc-shaped filter screen (4).

3. A gas-solid separation device for preparing ammonium bicarbonate according to claim 1, characterized in that: Also includes: Two second electric rotating shafts (13) are both rotatably connected to the inner housing (3) and are both located on the inner side of the filter cloth (10). The two second electric rotating shafts (13) are commonly wound with a blocking sheet (14). The blocking piece (14) is provided with a rectangular through hole; An exhaust frame (15) is fixedly connected to the rectangular through hole of the blocking piece (14), and a side of the exhaust frame (15) close to the arc-shaped filter screen (4) is in contact with the filter cloth (10).

4. A gas-solid separation device for preparing ammonium bicarbonate according to claim 3, characterized in that: Also includes: A lower connecting piece (16) is fixedly connected to the inner side of the exhaust frame (15); an upper connecting piece (17) is fixedly connected to the side of the exhaust frame (15) away from the lower connecting piece (16); the lower connecting piece (16) and the upper connecting piece (17) are fixedly connected to a collision magnetic rod (18); the collision magnetic rod (18) collides with the filter cloth (10); A mounting frame (19) is fixedly connected to a side of the inner shell (3) close to the blocking piece (14); a plurality of first magnetic bars (20) and a plurality of second magnetic bars (21) are fixedly connected to the mounting frame (19); the plurality of first magnetic bars (20) and the plurality of second magnetic bars (21) are distributed in a staggered manner; and the first magnetic bars (20) and the second magnetic bars (21) are both magnetically matched with the impact magnetic bar (18).

5. A gas-solid separation device for preparing ammonium bicarbonate according to claim 4, characterized in that: The sum of the length of the lower connecting member (16) and the length of the upper connecting member (17) is greater than the height of the exhaust frame (15).

6. A gas-solid separation device for preparing ammonium bicarbonate according to claim 4, characterized in that: A plurality of V-shaped grooves (171) are provided on a side of the upper connecting piece (17) away from the blocking piece (14), and a weight bar (22) is fixedly connected to the upper connecting piece (17).

7. A gas-solid separation device for preparing ammonium bicarbonate according to claim 4, characterized in that: Also includes: A lower shielding member (23) is sealingly and rotatably connected to the inner shell (3), and the lower shielding member (23) is in contact and cooperation with the filter cloth (10); An upper shielding member (24) is fixedly connected to a side of the inner shell (3) away from the lower shielding member (23), the upper shielding member (24) is in contact with the filter cloth (10), and the lower shielding member (23) and the upper shielding member (24) are both located on a side of the filter cloth (10) away from the collecting cylinder (11).

8. A gas-solid separation device for preparing ammonium bicarbonate according to claim 7, characterized in that: Also includes: A guide member (25) is sealingly rotatably connected to a side of the inner shell (3) close to the collecting cylinder (11), the guide member (25) is located between the filter cloth (10) and the collecting cylinder (11), and the guide member (25) is in contact with the filter cloth (10); A bidirectional cylinder (26) is connected to the inner shell (3) in a limited sliding manner, and two telescopic ends of the bidirectional cylinder (26) are respectively rotatably connected to the guide member (25) and the lower shielding member (23).

9. A gas-solid separation device for preparing ammonium bicarbonate according to claim 8, characterized in that: Also includes: A guide sheet (27) is fixedly connected to a side of the inner shell (3) close to the guide member (25); the guide sheet (27) is located between the guide member (25) and the filter cloth (10); the guide sheet (27) and the guide member (25) are extrusion-fitted.

10. A gas-solid separation device for preparing ammonium bicarbonate according to claim 9, characterized in that: The position where the guide piece (27) contacts the guide member (25) and the position where the upper shielding member (24) contacts the filter cloth (10) are both provided with spherical protrusions for reducing the friction force when the guide piece (27) and the guide member (25) and the upper shielding member (24) and the filter cloth (10) slide relative to each other.

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