Negative pressure slurry adding tank

Abstract

The utility model particularly relates to a negative pressure slurry adding tank which comprises a tank body and a slurry outlet located at the bottom of the tank body, the tank body is provided with a slurry inlet and an air port, and the slurry inlet has a first connection state in which the slurry inlet is detachably connected with a slurry adding connector and a second connection state in which the slurry inlet is detachably connected with a safety valve. The air port is hermetically connected with a vacuum generating device through a control valve, when the slurry inlet is in the first connection state, the control valve and the vacuum generating device are opened, and the vacuum generating device forms negative pressure in the tank body. When slurry needs to be added, the slurry inlet is connected with the slurry adding connector, the slurry adding connector can be connected with slurry through a slurry inlet pipe or other connecting pipelines, the vacuum generating device and the control valve are opened, negative pressure is formed in the tank body through the vacuum generating device, then the slurry in the charging barrel can be guided into the tank body, and the slurry adding process is rapid and convenient. When the slurry adding tank needs to supply slurry to other equipment, slurry can be supplied by closing the vacuum generating device and the control valve and connecting the slurry adding connector with the safety valve, and the two modes are convenient to switch.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry adding tanks, in particular to a negative pressure slurry adding tank. Background Art

[0002] Currently in pharmaceutical and food production, it is usually necessary to add water to the powder and heat it for mixing and stirring, so as to complete the slurry preparation operation with a higher viscosity. After the slurry preparation is completed, the slurry after preparation is added to the slurry tank, and then transported and cooled through the slurry tank.

[0003] The existing conventional pressure slurry adding tank adopts the method of adding slurry by flipping the cover, and the slurry adding process is cumbersome and complicated, and it is not easy to clean. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a negative pressure slurry adding tank.

[0005] The technical solution adopted by the utility model is as follows: a negative pressure slurry adding tank, comprising a tank body and a slurry outlet located at the bottom of the tank body, the tank body having a slurry inlet and an air port, the slurry inlet having a first connection state detachably connected to a slurry adding joint and a second connection state detachably connected to a safety valve, the air port being sealed and connected to a vacuum generating device through a control valve, when the slurry inlet is in the first connection state, the control valve and the vacuum generating device are opened, and the vacuum generating device forms a negative pressure in the tank body.

[0006] Preferably, a first passage is provided between the air port and the control valve, the first passage is connected to a second passage, and the second passage is connected to a pressure reducing valve.

[0007] Preferably, a residual pressure release valve is also connected to the second passage.

[0008] Preferably, the residual pressure release valve is located between the first passage and the pressure reducing valve.

[0009] Preferably, the slurry inlet and the air outlet are both located at the top of the tank body.

[0010] Preferably, the control valve is a manual ball valve.

[0011] Preferably, the slurry adding joint has a connecting tail connected to the slurry inlet and a connecting head inserted into the slurry inlet pipe.

[0012] The outer periphery of the connecting head is provided with an anti-slip convex ring, the thickness of the anti-slip convex ring increases from the connecting head to the connecting tail, and the distance from the center of the grouting joint forms a guiding inclined surface with its outer periphery, and the end face of the anti-slip convex ring close to the connecting tail forms an anti-slip abutment surface.

[0013] Preferably, a plurality of anti-slip convex rings are provided in a direction from the connecting head to the connecting tail.

[0014] Preferably, the slurry adding joint is provided with a protective sleeve outside the connecting head, the inner diameter of which is larger than the outer diameter of the slurry inlet pipe.

[0015] Preferably, an adjusting screw is radially threadedly connected to the protective sleeve, and when the pulp inlet is in the first connection state, the adjusting screw moves radially to have a first locking state pressed against the outer periphery of the pulp inlet pipe and a first unlocking state away from the outer periphery of the pulp inlet pipe.

[0016] The beneficial effects of the utility model are as follows: when slurry needs to be added, the slurry inlet is connected to the slurry adding joint, the slurry adding joint can be connected to the slurry through the slurry inlet pipe or other connecting pipes, the vacuum generating device and the control valve are turned on, and negative pressure is formed in the tank body through the vacuum generating device, so that the slurry in the barrel can be introduced into the tank body, and the slurry adding process is fast and convenient; when the slurry adding tank needs to supply slurry to other equipment, the vacuum generating device and the control valve are closed, and the slurry adding joint is connected to the safety valve to supply slurry, and the switching operation between the two modes is convenient; at the same time, the vacuum generating device specifically adopts a vacuum generator, and the vacuum generator is matched with the control valve, the structure is compact, and its applicability can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0018] Figure 1 It is a front cross-sectional view of a first connection state of an embodiment of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the second connection state of the embodiment of the utility model;

[0020] Figure 3 It is a top view of the local structure of an embodiment of the utility model;

[0021] Figure 4 for Figure 1 A magnified view of the structure at center A;

[0022] In the figure, 1, tank body; 2, slurry adding joint; 3, safety valve; 4, control valve; 5, vacuum generating device; 6, pressure reducing valve; 7, residual pressure release valve; 8, slurry outlet; 11, slurry inlet; 12, air port; 21, connecting tail; 22, connecting head; 23, protective sleeve; 111, slurry inlet pipe; 121, first passage; 122, second passage; 221, anti-slip convex ring; 231, adjusting screw; 2211, guide slope; 2212, anti-slip abutment surface. DETAILED DESCRIPTION

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

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0025] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, in an embodiment of the utility model, a negative pressure slurry adding tank comprises a tank body 1 and a slurry outlet 8 at the bottom of the tank body 1, the tank body 1 has a slurry inlet 11 and an air port 12, the slurry inlet 11 has a first connection state detachably connected to a slurry adding joint 2 and a second connection state detachably connected to a safety valve 3, the air port 12 is sealed and connected to a vacuum generating device 5 through a control valve 4, when the slurry inlet 11 is in the first connection state, the control valve 4 and the vacuum generating device 5 are opened, and the vacuum generating device 5 forms a negative pressure in the tank body 1.

[0027] Through the above settings, when slurry needs to be added, the slurry inlet is connected to the slurry adding joint, the slurry adding joint can be connected to the slurry through the slurry inlet pipe or other connecting pipes, the vacuum generating device and the control valve are turned on, and negative pressure is formed in the tank body through the vacuum generating device, so that the slurry in the barrel can be introduced into the tank body, and the slurry adding process is fast and convenient; when the slurry adding tank needs to supply slurry to other equipment, the vacuum generating device and the control valve are closed, and the slurry adding joint is connected to the safety valve to supply slurry, and the switching operation between the two modes is convenient; at the same time, the vacuum generating device specifically adopts a vacuum generator, and the vacuum generator is matched with the control valve, which has a compact structure and can effectively improve its applicability.

[0028] There is a first passage 121 between the gas port 12 and the control valve 4, the first passage 121 is connected to a second passage 122, and the second passage 121 is connected to a pressure reducing valve 6. Through this arrangement, the pressure between the gas port and the control valve is further adjusted, so that the pressure in the first passage is always kept within a safe range, thereby improving the safety of the device; in this embodiment, the first passage and the second passage are specifically two inner pipes intersecting a three-way pipe.

[0029] The second passage 122 is also connected to a residual pressure release valve 7. With this arrangement, when the pressure in the first passage reaches a certain value, the valve can be opened to release the pressure in the passage, so as to avoid explosion accidents caused by excessive pressure in the passage, further improving the safety of the device; wherein, this embodiment specifically adopts a residual pressure release three-way valve.

[0030] The residual pressure release valve 7 is located between the first passage 121 and the pressure reducing valve 6. Through this arrangement, the residual pressure release valve cooperates with the pressure reducing valve, making the overall structure of the device compact and the safety further improved.

[0031] The slurry inlet 11 and the air outlet 12 are both located at the top of the tank body 1. Through this arrangement, the slurry inlet and air extraction efficiency are improved.

[0032] The control valve 4 is a manual ball valve. Through this arrangement, it cooperates with the vacuum generating device, and the structure is more streamlined and compact.

[0033] The slurry adding joint 2 comprises a connecting tail portion 21 connected to the slurry inlet 11 and a connecting head portion 22 inserted into the slurry inlet pipe 111.

[0034] The outer periphery of the connecting head 22 is provided with an anti-slip convex ring 221, and the anti-slip convex ring 221 increases in thickness from the connecting head 22 to the connecting tail 21, and forms a guiding inclined surface 2211 with its outer periphery, and the end face of the anti-slip convex ring 221 close to the connecting tail 21 forms an anti-slip abutment surface 2212.

[0035] Through this arrangement, the guiding inclined surface of the anti-slip convex ring has a guiding function during the process of inserting the slurry inlet pipe into the slurry adding joint, thereby improving the convenience of installation between the slurry inlet pipe and the slurry adding joint; at the same time, the anti-slip abutment surface formed at the bottom end of the anti-slip convex ring can effectively limit the slurry inlet pipe from falling off from the slurry adding joint during the slurry adding operation of the tank body, thereby improving the stability and safety of the slurry adding operation of the device.

[0036] The anti-dropping convex rings 221 are provided in a plurality from the connection head 22 to the connection tail 21. This arrangement further improves the effect of preventing the slurry inlet pipe from falling off from the slurry adding joint during the slurry adding operation of the tank body. At the same time, the plurality of anti-dropping convex rings make the position where the slurry inlet pipe is connected to the slurry adding joint adjustable to a certain extent.

[0037] The grouting joint 2 is provided with a protective sleeve 23 having an inner diameter greater than the outer diameter of the grouting pipe 111 outside the connecting head 22. Through this arrangement, the protective sleeve has a certain degree of protection for the grouting joint, the grouting pipe and the connection between the two, further improving the stability of the operation of the device.

[0038] The protective sleeve 23 is threadedly connected with an adjusting screw 231 in the radial direction. When the slurry inlet 11 is in the first connection state, the adjusting screw 231 moves radially to have a first locking state pressed against the outer periphery of the slurry inlet pipe 111 and a first unlocking state away from the outer periphery of the slurry inlet pipe 111. This arrangement further improves the effect of limiting the slurry inlet pipe from falling off the slurry adding joint during the slurry inlet operation of the tank body, thereby ensuring the safety of the device.

[0039] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A negative pressure slurry adding tank, comprising a tank body (1) and a slurry outlet (8) located at the bottom of the tank body (1), characterized in that: The tank body (1) comprises a slurry inlet (11) and an air port (12); the slurry inlet (11) has a first connection state in which it is detachably connected to a slurry adding joint (2) and a second connection state in which it is detachably connected to a safety valve (3); the air port (12) is sealedly connected to a vacuum generating device (5) via a control valve (4); when the slurry inlet (11) is in the first connection state, the control valve (4) and the vacuum generating device (5) are opened, and the vacuum generating device (5) forms a negative pressure in the tank body (1).

2. A negative pressure slurry adding tank according to claim 1, characterized in that: A first passage (121) is provided between the air port (12) and the control valve (4); the first passage (121) is connected to a second passage (122); and the second passage (122) is connected to a pressure reducing valve (6).

3. A negative pressure slurry adding tank according to claim 2, characterized in that: The second passage (122) is also connected to a residual pressure release valve (7).

4. A negative pressure slurry adding tank according to claim 3, characterized in that: The residual pressure release valve (7) is located between the first passage (121) and the pressure reducing valve (6).

5. The negative pressure slurry adding tank according to claim 1, characterized in that: The slurry inlet (11) and the air outlet (12) are both located at the top of the tank body (1).

6. The negative pressure slurry adding tank according to claim 1, characterized in that: The control valve (4) is a manual ball valve.

7. The negative pressure slurry adding tank according to claim 1, characterized in that: The slurry adding joint (2) comprises a connecting tail portion (21) connected to the slurry inlet (11) and a connecting head portion (22) inserted into the slurry inlet pipe (111). The outer periphery of the connecting head (22) is provided with an anti-slip convex ring (221); the thickness of the anti-slip convex ring (221) increases from the center of the grouting joint (2) in the direction from the connecting head (22) to the connecting tail (21) and forms a guiding inclined surface (2211) with its outer periphery; the end surface of the anti-slip convex ring (221) close to the connecting tail (21) forms an anti-slip abutment surface (2212).

8. The negative pressure slurry adding tank according to claim 7, characterized in that: A plurality of the anti-dropping convex rings (221) are arranged in a direction from the connecting head (22) to the connecting tail (21).

9. The negative pressure slurry adding tank according to claim 1, characterized in that: The slurry adding joint (2) is provided with a protective sleeve (23) outside the connecting head (22) and the inner diameter of the protective sleeve (23) is larger than the outer diameter of the slurry inlet pipe (111).

10. The negative pressure slurry adding tank according to claim 9, characterized in that: An adjusting screw (231) is radially threadedly connected to the protective sleeve (23); when the pulp inlet (11) is in a first connection state, the adjusting screw (231) moves radially to have a first locking state pressed against the outer periphery of the pulp inlet pipe (111) and a first unlocking state away from the outer periphery of the pulp inlet pipe (111).

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