Vacuum feeding device

Abstract

The utility model discloses a vacuum feeding device, and belongs to the technical field of veterinary drug preparation. Comprising a case, a charging barrel, a first filter element, a filter element barrel, a second filter element, a fan, an operation panel and a reverse blowing air bag, a second air outlet is formed in one end of the filter element cylinder; a pressure reducing valve is arranged on the second air outlet; the top of the filter element cylinder is provided with a three-way pipe and the bottom in the filter element cylinder is provided with a pressure sensor; a manual valve is arranged on one air outlet of the three-way pipe, and a second electromagnetic valve is arranged on the other air outlet of the three-way pipe; a supporting pipe is arranged on the upper side of the machine case and located under the filter element cylinder, and the filter element cylinder is arranged on the supporting pipe; a wire of the second electromagnetic valve penetrates through the supporting pipe downwards along the outer wall of the filter element cylinder, enters the case and is electrically connected with the operation panel; a wire of the pressure sensor penetrates through the supporting pipe downwards, enters the machine box and is electrically connected with the operation panel. A wire of the first electromagnetic valve is fixed on the steel wire hose, penetrates through the supporting pipe downwards along the outer wall of the filter element cylinder, enters the case and is electrically connected with an operation panel.

Description

Technical Field

[0001] The utility model belongs to the technical field of veterinary medicine preparation, and particularly relates to a vacuum feeding device. Background Art

[0002] As Figure 1 shown, it is a preparation flow chart of veterinary medicine powder containing traditional Chinese medicine. In the mixing process, it needs to be sent to a square cone mixer through a vacuum feeding device.

[0003] For example, the patent with the application number CN201820557298.X discloses a vacuum feeder, which includes an actuating valve, a filter plate, a filter cartridge, a first filter element, a conical cylinder, a second filter element and a high-pressure vortex blower. The actuating valve is installed on the upper part of the upper cover. An air extraction pipe is installed on the upper part of the upper cover. The right end of the air extraction pipe is installed at the connection port on the upper part of the small gland. A cylindrical spiral compression spring is installed at the connection part of the air extraction pipe and the small gland. The small gland is installed on the filter element cylinder. A second filter element is installed inside the filter element cylinder. The filter element cylinder is communicated with the high-pressure vortex blower through a pipeline. The high-pressure vortex blower is fixed on the blower seat. The upper cover is installed on the upper part of the filter cartridge. The filter cartridge and the upper cover are fixedly connected through a collar. A filter plate is installed between the filter cartridge and the upper cover. The filter plate is fixed on the upper part of the filter cartridge through a filter seat. A first filter element is installed inside the filter cartridge. An anti-blowing air bag is installed on the filter cartridge. A quick exhaust valve is installed on the upper part of the anti-blowing air bag. An electromagnetic reversing valve is installed on the right side of the anti-blowing air bag. An oil filter pressure regulating valve is installed on the right side of the electromagnetic reversing valve. A conical cylinder is installed at the lower part of the filter cartridge. The filter cartridge and the conical cylinder are fixedly connected through a collar. A pneumatic butterfly valve is installed at the lower part of the conical cylinder. The conical cylinder and the pneumatic butterfly valve are fixedly connected through a clamp. A clamp seal is installed on the clamp. A bottom grid is installed at the lower part of the pneumatic butterfly valve.

[0004] For example, the patent with the application number CN202222131747.3 discloses a vacuum feeding device for centrifuge filter media, which includes a feeding component, a bag dust removal box body component, a bag self-cleaning device component, a secondary filter, a negative pressure power machine component, an exhaust pipe, a negative pressure air pipe and two hose clamps. The top flange of the feeding component is vertically and sealedly installed by connecting with the bottom flange of the bag dust removal box body component. The upper flange of the bag dust removal box body component and the lower flange of the bag self-cleaning device component are fixedly and sealedly connected through several screws. One end of the exhaust pipe is fixedly communicated with the bag self-cleaning device component through a hose clamp. The other end of the exhaust pipe is connected and fixedly communicated with the upper ventilation pipe on the side of the secondary filter through a hose clamp. The flange at one end of the negative pressure air pipe is fixed to the flange above the secondary filter, and the flange at the other end of the negative pressure air pipe is connected to the negative pressure power machine component.

[0005] The existing vacuum feeding device includes a chassis, a vertically arranged material cylinder, multiple first filter elements inside the material cylinder, a horizontally arranged filter element cylinder, a second filter element in the middle of the filter element cylinder, a blower inside the chassis, an operation panel on the upper side of the rear part of the chassis, a back purge air bag on the material cylinder, etc. The filter element cylinder is located directly in front of the chassis and is suspended. Its lower part at the rear side is fixedly connected to the upper side of the front part of the chassis through a suspension arm; the back purge air bag is connected to the upper part of the material cylinder through a back purge pipe provided with a first solenoid valve; the filter element cylinder is located between the suspension arm and the operation panel, and a second air outlet is provided at one end thereof. The first air outlet at the top of the material cylinder is connected to the second air inlet at the top of the filter element cylinder through a steel wire hose, and the second air outlet is fixed on the upper side of the chassis and is connected to the air inlet of the blower through a pipeline. Usually, the number of the first filter elements is relatively large, such as 9. The first filter element is usually a cloth bag filter element, and the second filter element is a folded paper filter element. The second filter element performs secondary filtration. The diameter of the filter element cylinder is usually 20 - 30 cm, and the steel plate thickness is usually 3 - 5 mm. The applicant found in the actual use process that under negative pressure, the filter element cylinder is more likely to deform (collapse) relative to the material cylinder. If the filter element cylinder deforms, it is not only unsightly but also may damage the filter element or make it impossible to replace the filter element. Summary of the Invention

[0006] To solve the above problems, the embodiment of the present invention provides a vacuum feeding device, which sets a pressure reducing valve to control the pressure of the filter element cylinder, and at the same time sets a pressure sensor to detect the pressure sensor. When the pressure is greater than the set value, automatic pressure relief is carried out, and manual pressure relief can also be carried out; the support pipe has two functions: one is to route wires, and the other is to cooperate with the second air outlet to jointly support the filter element cylinder. The technical solution is as follows:

[0007] An embodiment of the present utility model provides a vacuum feeding device, which includes a chassis 1, a vertically arranged material cylinder 2, multiple first filter elements inside the material cylinder 2, a horizontally arranged filter element cylinder 3, a second filter element in the middle of the filter element cylinder 3, a fan inside the chassis 1, an operation panel 4 on the upper side of the rear part of the chassis 1, and an anti-blowing air bag 5 on the material cylinder 2; the material cylinder 2 is located directly in front of the chassis 1, suspended, and its lower part at the rear side is fixedly connected to the upper side of the front part of the chassis 1 through a suspension arm 6; the anti-blowing air bag 5 is connected to the upper part of the material cylinder 2 through an anti-blowing pipe 14 provided with a first solenoid valve; the filter element cylinder 3 is located between the suspension arm 6 and the operation panel 4, and one end thereof is provided with a second air outlet 7; the first air outlet 8 at the top of the material cylinder 2 is connected to the second air inlet 9 at the top of the filter element cylinder 3 through a steel wire hose 12, and the second air outlet 7 is fixed on the upper side of the chassis 1 and is connected to the air inlet of the fan through a pipeline; a pressure reducing valve 10 is provided on the second air outlet 7; a tee pipe 11 is provided at the top of the filter element cylinder 3 and a pressure sensor is provided at the inner bottom thereof; a manual valve is provided on one air outlet of the tee pipe 11, and a second solenoid valve is provided on the other air outlet thereof; a support pipe 16 is provided on the upper side of the chassis 1 and directly below the filter element cylinder 3, the support pipe 16 is vertically arranged, and the filter element cylinder 3 is placed on the support pipe 16; the wire of the second solenoid valve is along the outer wall of the filter element cylinder 3, then passes downward through the support pipe 16 and enters the chassis 1 and is electrically connected to the operation panel 4; the wire of the pressure sensor passes downward through the support pipe 16 and enters the chassis 1 and is electrically connected to the operation panel 4; the wire of the first solenoid valve is fixed on the steel wire hose 12, then along the outer wall of the filter element cylinder 3, and finally passes downward through the support pipe 16 and enters the chassis 1 and is electrically connected to the operation panel 4.

[0008] Specifically, in the embodiment of the present utility model, the filter element cylinder 3 is arranged in the left-right direction, and a connecting pipe matching with the second air outlet 7 is provided on the upper side of the chassis 1; the connecting pipe is vertically arranged, and its lower end passes downward through the upper side of the chassis 1; the second air inlet 7 is arranged in the left-right direction, and its outer end is bent downward to be vertical to form a bent part, and a pressure reducing valve 10 is provided on its upper side; the bent part is detachably connected to the connecting pipe; the air inlet of the fan is connected to the lower end of the connecting pipe through a pipeline.

[0009] Further, in the embodiment of the present utility model, an end cover is detachably provided at the other end of the filter element cylinder 3, and the second air inlet 9 and the tee pipe 11 are arranged side by side in the left-right direction at the top thereof.

[0010] Specifically, in the embodiment of the present utility model, the support pipe 16 is a rectangular pipe, its long side is arranged in the left-right direction, and arc-shaped grooves matching with the filter element cylinder 3 are provided on its left and right sides.

[0011] Further, in the embodiment of the present utility model, a third solenoid valve is provided on the pipeline between the connecting pipe and the air inlet of the fan, and the third solenoid valve is located inside the chassis 1 and is electrically connected to the operation panel 4.

[0012] Further, an exhaust pipe 13 is provided on the upper side of the front part of the chassis 1 in the embodiment of the present utility model and beside the suspension arm 6; the exhaust pipe 13 is arranged vertically, its lower end passes through the upper side of the chassis 1 downward, and its upper part bends away from the suspension arm 6 to be horizontal; the air outlet of the fan is connected to the lower end of the exhaust pipe 13 through a pipeline.

[0013] Among them, the cartridge 2 in the embodiment of the present utility model includes a material receiving cylinder, a cylinder body and a head arranged in sequence from bottom to top. The upper end of the material receiving cylinder is detachably connected to the lower end of the cylinder body, the lower end of the head is detachably connected to the upper end of the cylinder body. The lower part of the cylinder body is a cone with a larger upper part and a smaller lower part, and a first air inlet 15 is provided on its upper part; the first filter element is located in the upper part of the cylinder body, and its upper end is fixed on the partition plate at the upper end of the cylinder body; the back purge air bag 5 is arranged in the left - right direction, it is located directly above the head, and its rear side is connected to the head through a vertical back purge pipe 14; the first air outlet 8 is located at the top of the head and directly behind the back purge pipe 14.

[0014] Specifically, the chassis 1 in the embodiment of the present utility model is a rectangular box arranged in the front - rear direction, with rollers provided at its bottom and detachable or openable doors provided on its left and right sides.

[0015] The beneficial effects brought by the technical solution provided in the embodiment of the present utility model are as follows: The embodiment of the present utility model provides a vacuum feeding device, which sets a pressure reducing valve to control the pressure of the filter element cylinder, and at the same time sets a pressure sensor to detect the pressure sensor. When the pressure is greater than the set value, automatic pressure relief is carried out, and manual pressure relief can also be carried out; the support pipe has two functions: one is for wire routing, and the other is to cooperate with the second air outlet to jointly support the filter element cylinder (detachably arranged for easy replacement of the filter element). The support pipe makes the wire routing look good. This patent is easy to replace the filter element (both the cartridge and the filter element cylinder are convenient for replacing the filter element), and frequently replacing the filter element can also reduce the risk of deformation of the filter element cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the preparation flow chart of veterinary powder;

[0017] Figure 2 is the structural schematic diagram of the vacuum feeding device provided by the embodiment of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the other side of the vacuum feeding device provided by the embodiment of the present utility model;

[0019] Figure 4 is the top view of the vacuum feeding device provided by the embodiment of the present utility model;

[0020] Figure 5 is the structural schematic diagram of the combination of the filter element cylinder and the support pipe;

[0021] Figure 6 It is the control schematic diagram of the operation panel.

[0022] In the figure: 1 chassis, 2 barrel, 3 filter cartridge, 4 operation panel, 5 back purge air bag, 6 suspension arm, 7 second air outlet, 8 first air outlet, 9 second air inlet, 10 pressure reducing valve, 11 three-way pipe, 12 steel wire hose, 13 exhaust pipe, 14 back purge pipe, 15 first air inlet, 16 support pipe. Specific embodiments

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] See Figure 2-6 , an embodiment of the present utility model provides a vacuum feeding device, which includes a chassis 1, a barrel 2, multiple first filters (not shown in the figure), a filter cartridge 3, a second filter (not shown in the figure), a fan (not shown in the figure), an operation panel 4, a back purge air bag 5, a pressure reducing valve 10, a support pipe 16, a pressure sensor (not shown in the figure), an exhaust pipe 13, etc.

[0025] Among them, the chassis 1 is a rectangular box arranged along the front-rear direction, with rollers provided at its bottom and detachable or openable doors provided on its left and right sides.

[0026] Among them, the filter cartridge 3 is located directly in front of the chassis 1, is vertically arranged, is suspended, and its lower part at the rear is fixedly connected to the upper side of the front part of the chassis 1 through a suspension arm 6. Specifically, the barrel 2 includes a material receiving barrel, a barrel body and a head arranged in sequence from bottom to top. The upper end of the material receiving barrel is detachably connected to the lower end of the barrel body (through a hoop or a locking member, etc.), the lower end of the head is detachably connected to the upper end of the barrel body (through a hoop or a locking member, etc.), the lower part of the barrel body is a cone with a larger upper part and a smaller lower part, and a first air inlet 15 is provided on its upper part (specifically provided on the front side of the barrel body). The suspension arm 6 is specifically an L-shaped structure.

[0027] Among them, multiple first filters are all located in the upper part of the barrel body, are all vertically arranged, their upper ends are fixed on the partition (horizontally arranged) at the upper end of the barrel body, and they are specifically bag filters. Specifically, a hole for the first filter to pass through downward is provided at the upper end of the partition, a convex ring is provided at the upper end of the first filter, the convex ring presses against the upper side of the partition, and a pressing plate is pressed against the upper side of all the convex rings.

[0028] Among them, the back purge air bag 5 is arranged along the left-right direction, is located directly above the head, and its rear side is connected to the head through a vertical back purge pipe 14. A first solenoid valve is provided on the back purge pipe 14. The first air outlet 8 is located at the top of the head and is directly behind the back purge pipe 14.

[0029] Among them, the filter cartridge 3 is located between the suspension arm 6 and the operation panel 4. It is horizontally arranged in the left - right direction. A second air outlet 7 is provided at its left end or right end. It is fixed to the chassis through the second air outlet 7. It is placed on the support pipe 16, and the other end is detachably (through a hoop or a locking member, etc.) provided with an end cap. On its top, a second air inlet 9 and a tee - shaped pipe 11 are arranged side by side in the left - right direction. Specifically, the second air inlet 9 is arranged close to the second air outlet 7. The first air outlet 8 is connected to the second air inlet 9 through a steel wire hose 12. The inlet of the tee - shaped pipe 11 is connected to the top of the filter cartridge 3. A manual valve (usually closed) is provided on one of its air outlets (specifically, it can be arranged upward), and a second solenoid valve is provided on the other air outlet (specifically, it can be arranged backward). The tee - shaped pipe 11 is used as a pressure relief port.

[0030] Among them, the second filter element is arranged inside the filter cartridge 3. It is arranged in the left - right direction and is connected to the second air outlet 7. Specifically, it is a pleated filter element.

[0031] Among them, a connecting pipe that mates with the second air outlet 7 is provided on the upper side of the chassis 1. The connecting pipe is vertically arranged, and its lower end passes downward through the upper side of the chassis 1. The second air inlet 7 is arranged in the left - right direction, and its outer end bends downward to be vertical to form a bent portion (constituting an L - shape). A pressure reducing valve 10 (vertically arranged) is provided on its upper side. The bent portion is detachably connected to the connecting pipe (specifically through two semi - circular pipe clamps). The second air outlet 7 is used to fix the filter cartridge 3 to the chassis 1.

[0032] Among them, the operation panel 4 is located on the upper rear side of the chassis 1. It is used to control the entire device and is electrically connected to the fan, the first solenoid valve, the second solenoid valve, the third solenoid valve, and the pressure sensor, etc.

[0033] Among them, the pressure sensor is arranged in the lower part of the filter cartridge 3 for the convenience of wire routing. It is fixed on the inner wall of the filter cartridge 3. It is located below the second filter element and has a conventional structure.

[0034] Among them, the support pipe 16 is arranged on the upper middle side of the chassis 1. It is located directly below the filter cartridge 3. It is vertically arranged and is a rectangular pipe. Its long side is arranged in the left - right direction. Arc - shaped grooves that mate with the filter cartridge 3 are provided on its left and right sides.

[0035] Among them, the exhaust pipe 13 is arranged on the upper front side of the chassis 1. It is located beside the suspension arm 6. It is vertically arranged, and its lower end passes downward through the upper side of the chassis 1. Its upper part bends away from the suspension arm 6 to be horizontal to form an L - shaped structure.

[0036] Among them, the fan is located inside the chassis 1. Its air inlet is connected to the lower end of the connecting pipe through a pipeline, and its air outlet is connected to the lower end of the exhaust pipe 13 through a pipeline. Further, a third solenoid valve is provided on the pipeline between the connecting pipe and the air inlet of the fan. The third solenoid valve is located inside the chassis 1 and is electrically connected to the operation panel 4.

[0037] Among them, the wire of the second solenoid valve runs along the outer wall of the filter element cylinder 3, then passes downward through the support pipe 16 into the chassis 1 and is electrically connected to the operation panel 4. The wire of the pressure sensor passes downward through the support pipe 16 into the chassis 1 and is electrically connected to the operation panel 4. The wire of the first solenoid valve is fixed on the steel wire hose 12, then runs along the outer wall of the filter element cylinder 3, and finally passes downward through the support pipe 16 into the chassis 1 and is electrically connected to the operation panel 4.

[0038] Among them, the opening pressures of the pressure reducing valve 10 and the second solenoid valve should both avoid the deformation of the filter element cylinder 3. The opening pressure of the second solenoid valve is lower than or equal to that of the pressure reducing valve 10. If the negative pressure of the filter element cylinder 3 is relatively low, the pressure reducing valve 10 is preferentially opened. If the pressure cannot be increased to the predetermined pressure or the pressure reducing valve 10 is abnormal, the second solenoid valve is then opened. Of course, the manual valve can also be manually opened.

[0039] Among them, the "first", "second", and "third" in this embodiment are only for distinction and have no other special meaning.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum feeding device, comprising a chassis (1), a vertically arranged barrel (2), a plurality of first filter elements in the barrel (2), a horizontally arranged filter element cartridge (3), a second filter element in the middle of the filter element cartridge (3), a fan in the chassis (1), an operation panel (4) on the upper rear side of the chassis (1), and a back-purge air bag (5) on the barrel (2); the barrel (2) is located directly in front of the chassis (1), is suspended in the air, and the lower rear side thereof is fixedly connected to the upper front side of the chassis (1) via a suspension arm (6); the back-purge air bag (5) is provided on the upper rear side of the chassis (1); The purge air bag (5) is connected to the upper part of the barrel (2) through a back-purge pipe (14) provided with a first solenoid valve; the filter cartridge (3) is located between the suspension arm (6) and the operation panel (4), and one end of the filter cartridge (3) is provided with a second air outlet (7); the first air outlet (8) at the top of the barrel (2) is connected to the second air inlet (9) at the top of the filter cartridge (3) through a steel wire hose (12), and the second air outlet (7) is fixed on the upper side of the chassis (1) and is connected to the air inlet of the fan through a pipeline; it is characterized in that The second air outlet (7) is provided with a pressure reducing valve (10); the top of the filter cartridge (3) is provided with a three-way pipe (11) and the bottom thereof is provided with a pressure sensor; one of the air outlets of the three-way pipe (11) is provided with a manual valve, and the other air outlet is provided with a second solenoid valve; a support tube (16) is provided on the upper side of the chassis (1) and directly below the filter cartridge (3); the support tube (16) is vertically arranged, and the filter cartridge (3) is placed on the support tube (16); the wire of the second solenoid valve runs along the outer wall of the filter cartridge (3), then passes downward through the support tube (16) into the chassis (1) and is electrically connected to the operation panel (4); the wire of the pressure sensor passes downward through the support tube (16) into the chassis (1) and is electrically connected to the operation panel (4); the wire of the first solenoid valve is fixed on the steel wire hose (12), then runs along the outer wall of the filter cartridge (3), and finally passes downward through the support tube (16) into the chassis (1) and is electrically connected to the operation panel (4).

2. The vacuum feeding device according to claim 1, characterized in that: The filter cartridge (3) is arranged in the left-right direction, and a connecting pipe cooperating with the second air outlet (7) is provided on the upper side of the chassis (1); the connecting pipe is arranged vertically, and its lower end passes downward through the upper side of the chassis (1); the second air outlet (7) is arranged in the left-right direction, and its outer end is bent downward to form a vertical bending portion, and a pressure reducing valve (10) is provided on its upper side; the bending portion is detachably connected to the connecting pipe; the air inlet of the fan is connected to the lower end of the connecting pipe through a pipeline.

3. The vacuum feeding device according to claim 2, characterized in that: The other end of the filter cartridge (3) is detachably provided with an end cap, and a second air inlet (9) and a three-way pipe (11) are arranged side by side on the top.

4. The vacuum feeding device according to claim 2, characterized in that: The support tube (16) is a rectangular tube, the long side of which is arranged in the left and right directions, and the left and right sides of which are provided with arc-shaped grooves that match the filter cartridge (3).

5. The vacuum feeding device according to claim 2, characterized in that: A third solenoid valve is provided on the pipeline between the connecting pipe and the air inlet of the fan; the third solenoid valve is located in the chassis (1) and is electrically connected to the operation panel (4).

6. The vacuum feeding device according to claim 2, characterized in that: An exhaust pipe (13) is provided on the upper front side of the chassis (1) and beside the suspension arm (6); the exhaust pipe (13) is arranged vertically, with its lower end passing downward through the upper side of the chassis (1), and its upper part being bent away from the suspension arm (6) to a horizontal position; and the air outlet of the fan is connected to the lower end of the exhaust pipe (13) through a pipeline.

7. The vacuum feeding device according to claim 1, characterized in that: The material barrel (2) comprises a material receiving barrel, a barrel body and a head which are arranged in sequence from bottom to top, the upper end of the material receiving barrel is detachably connected to the lower end of the barrel body, the lower end of the head is detachably connected to the upper end of the barrel body, the lower part of the barrel body is a cone with a larger upper part and a smaller lower part, and a first air inlet (15) is provided at its upper part, the first filter element is located in the upper part of the barrel body and its upper end is fixed to the partition at the upper end of the barrel body; the back-purge air bag (5) is arranged in the left and right directions, it is located directly above the head, and its rear side is connected to the head through a vertical back-purge pipe (14); the first air outlet (8) is located at the top of the head and it is located directly behind the back-purge pipe (14).

8. The vacuum feeding device according to claim 1, characterized in that: The case (1) is a rectangular box body arranged in the front-to-back direction, with rollers provided at the bottom and detachable or openable case doors provided on the left and right sides.

Images