A double butterfly valve solid preparation feeding device

Abstract

The present invention discloses a double butterfly valve solid preparation feeding device, comprising: a mounting plate; a cylindrical device cavity located below the mounting plate; an upper butterfly valve installed at the upper end of the device cavity; a lower end docking flange installed at the device cavity; a platform located above the mounting plate; a flexible connecting pipe with a lower end passing through the platform and the mounting plate and docking with the upper butterfly valve; and a valve opening mechanism with an upper end fixedly connected to the mounting plate and located on one side of the device cavity. The present invention can realize automatic docking, valve opening, purging and cleaning with material turnover barrels, and does not require manual docking of pipelines to transport materials, effectively improving the degree of automation and cleanliness of factory equipment use.

Description

Technical Field

[0001] The invention relates to the field of solid preparation equipment, and in particular to a double butterfly valve solid preparation feeding device. Background Art

[0002] At present, the gravity direction conveying of powder in solid dosage equipment is often done by manually connecting soft-connected pipes and opening valves manually, which is laborious and difficult to operate. In addition, there is no purge and powder removal process. After removing the soft-connected pipes, the powder attached to the inner wall of the pipe will fall directly into the clean area, and the contact opportunity between the conveyed powder and the operator will increase, reducing the environmental safety level of the clean area. At this time, it is required that the double butterfly valve structure can open the valve automatically, and the powder attached to the inner wall of the pipe will not fall into the clean area after closing the butterfly valve. Simplify the worker's operation process to the greatest extent and ensure the safety of operation. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems and provide a double butterfly valve solid preparation unloading device, which can realize automatic docking, valve opening, purging and cleaning with the material turnover barrel, and does not require manual docking of pipelines to transport materials, thereby effectively improving the degree of automation and cleanliness of factory equipment use.

[0004] The object of the present invention is achieved in that:

[0005] A double butterfly valve solid preparation feeding device of the present invention is used for feeding a material turnover barrel, and a lower butterfly valve is installed at the inlet of the material turnover barrel. The double butterfly valve solid preparation feeding device is characterized in that the double butterfly valve solid preparation feeding device comprises:

[0006] a mounting plate;

[0007] A cylindrical device cavity is located below the mounting plate, and at least three horizontally arranged connecting plates are arranged on the outer wall of the device cavity, and each connecting plate is fixedly connected to the mounting plate through a vertical connecting rod;

[0008] An upper butterfly valve installed at the upper end of the device cavity;

[0009] A lower end butt flange mounted on the device cavity, the flange surface of the butt flange is provided with a dovetail groove for mounting an inflatable sealing ring;

[0010] A platform located above the mounting plate, the platform is connected to the mounting plate via a plurality of first connecting members, and the platform is hoisted via a plurality of second connecting members;

[0011] A flexible connecting pipe with a lower end passing through the platform and the mounting plate and butted against the upper butterfly valve, wherein the upper end of the flexible connecting pipe is connected to a conveying pipeline for the solid preparation;

[0012] A valve opening mechanism is fixedly connected to the mounting plate at the upper end and is located on one side of the device cavity. The valve opening mechanism includes a valve opening mechanism mounting seat and an upper valve opening actuator and a lower valve opening actuator which are arranged on the valve opening mechanism mounting seat. The output shaft of the upper valve opening actuator is coaxially arranged and fixedly connected with the transmission shaft of the upper butterfly valve; the lower valve opening actuator is installed on a sliding mechanism so as to be movable left and right, and an inclined groove wedge-shaped guide connection is provided between the output shaft of the lower valve opening actuator and the transmission shaft of the lower butterfly valve.

[0013] The connecting plates in the above-mentioned double butterfly valve solid preparation feeding device include at least three groups of connecting plates, and each group of connecting plates includes two connecting plates arranged one above the other.

[0014] In the above-mentioned double butterfly valve solid preparation feeding device, the end surface of the butt flange and the end surface of the lower butterfly valve are provided with a matching wedge-shaped guide structure.

[0015] There are four first connecting members in the above-mentioned double butterfly valve solid preparation feeding device, and each first connecting member is equipped with or has a buffer member installed beside it.

[0016] Each first connecting member in the above-mentioned double butterfly valve solid preparation feeding device includes a steel wire rope, at least one end of which is threadedly connected to the platform and the lifting block of the mounting plate through a bolt adjusting member, and the height of the four first connecting members is adjusted through the bolt adjusting member, and the buffer member is a spring member.

[0017] The rotating shaft of the lower butterfly valve in the above-mentioned double butterfly valve solid preparation feeding device is provided with a self-locking workpiece, and the limit self-locking mechanism is used to avoid misoperation and the valve plate of the lower butterfly valve automatically opening under force.

[0018] A blocking ring is installed on the output shaft of the lower valve actuator in the above-mentioned double butterfly valve solid preparation feeding device. When the material turnover barrel is lifted to make the lower butterfly valve dock with the docking flange, the blocking ring on the output shaft of the lower valve actuator first pushes open the self-locking workpiece of the lower butterfly valve so that the lower butterfly valve can be opened in a controlled manner.

[0019] The lower valve opening actuator in the above-mentioned double butterfly valve solid preparation feeding device is limited by a limiting member with a waist-shaped groove installed on the valve opening mechanism mounting seat.

[0020] In the above-mentioned double butterfly valve solid preparation feeding device, a purging and cleaning mechanism connected to its inner cavity and a vacuum pumping mechanism connected to its inner cavity are also installed on the outer wall of the device cavity; compressed air is purged into the device cavity through the purging and cleaning mechanism, and negative pressure is generated through the vacuum pumping mechanism in the inner cavity of the device cavity to form positive and negative pressure airflows to discharge the purged compressed air into a dust recovery and processing equipment.

[0021] The purge pipe of the purge cleaning mechanism in the double butterfly valve solid preparation feeding device is extended into the inner cavity of the device cavity by the action of the cylinder, and a nozzle is installed on the purge pipe and is closely matched with the machined parts welded on the device cavity at an angle to form a seal;

[0022] The vacuum pumping mechanism is installed on the device cavity through a clamp.

[0023] The present invention can realize automatic docking, valve opening, purging and cleaning with the material turnover barrel, and does not require manual docking of pipelines to transport materials, thereby effectively improving the degree of automation and cleanliness of factory equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the material turnover barrel structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the lower butterfly valve of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a double butterfly valve solid preparation feeding device of the present invention;

[0027] Figure 4 yes Figure 3 Bottom view of

[0028] Figure 5 This is a diagram showing the docking state of the double butterfly valve solid preparation feeding device of the present invention and the material turnover barrel;

[0029] Figure 6 It is a connection state diagram of the device cavity, upper butterfly valve, docking flange, purge and cleaning mechanism and vacuum pumping mechanism of the present invention;

[0030] Figure 7 yes Figure 6 A top view of

[0031] Figure 8 It is a structural state diagram of the valve opening mechanism of the present invention;

[0032] Fig. 9 yes Figure 8 Right view of . DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] See also Figure 1 The figure shows a double butterfly valve solid preparation feeding device of the present invention, a lower butterfly valve 101 is installed at the inlet of the material turnover barrel 100, and the double butterfly valve solid preparation feeding device comprises:

[0035] A mounting plate 1;

[0036] A cylindrical device cavity 2 is located below the mounting plate 1, and at least three horizontally arranged connecting plates 21 are arranged on the outer wall of the device cavity 2, and each connecting plate 21 is fixedly connected to the mounting plate 1 through a vertical connecting rod 22; in this embodiment, the connecting plates 21 include at least three groups of connecting plates 21 arranged up and down;

[0037] An upper butterfly valve 3 installed at the upper end of the device cavity 2;

[0038] A docking flange 4 is installed at the lower end of the device cavity 2, and a dovetail groove for installing an inflatable sealing ring 41 is provided on the flange surface of the docking flange 4. In this embodiment, a matching wedge-shaped guide structure 42 is provided on the end surface of the docking flange 4 and the end surface of the lower butterfly valve 101;

[0039] A platform 5 is located above the mounting plate 1, the platform 5 is connected to the mounting plate 1 through a plurality of first connecting members 51, and the platform 5 is hoisted through a plurality of second connecting members 52; in this embodiment, there are four first connecting members 51, each of which includes a steel wire rope threadedly connected to the platform 5 and the hoisting block of the mounting plate 1, at least one end of the steel wire rope is a bolt adjustment member, through which the four first connecting members 51 are made to have the same height, and an elastic buffer member 53 for buffering is also installed next to each first connecting member 51, and the elastic buffer member 53 is a spring, and the platform 5 is hoisted and fixed on a load-bearing structural steel on the floor or top to provide sufficient strength and stability;

[0040] A flexible connecting pipe 6 having a lower end passing through the platform 5 and the mounting plate 1 and docked with the upper butterfly valve 3, wherein the upper end of the flexible connecting pipe 6 is connected to a conveying pipe 61 for the solid preparation;

[0041] An opening valve mechanism 7 is fixedly connected to the mounting plate 1 at the upper end and is located on one side of the device cavity 2. It includes an opening valve mechanism mounting seat 71 and an upper opening valve actuator 72 and a lower opening valve actuator 73, which are coaxially arranged and fixedly connected with the transmission shaft of the upper butterfly valve 3 and an output shaft arranged on the opening valve mechanism mounting seat 71. The lower opening valve actuator 73 can be installed on a sliding mechanism 74 so as to be movable left and right. There is an inclined groove wedge-shaped guide docking between the output shaft of the lower opening valve actuator 73 and the transmission shaft of the lower butterfly valve 101. In this embodiment, when the lower butterfly valve 101 is closed, the rotation of the lower butterfly valve 101 The movable shaft is provided with a limit self-locking workpiece 102, through which the limit self-locking mechanism is used to avoid misoperation and the problem that the valve plate of the lower butterfly valve 101 is automatically opened by force; a blocking ring 75 is installed on the output shaft of the lower valve actuator 73. When the material turnover barrel 100 is lifted by a hoist to dock the lower butterfly valve 101 with the docking flange 4, the blocking ring 75 on the output shaft of the lower valve actuator 73 first pushes open the self-locking workpiece of the lower butterfly valve 101 so that the lower butterfly valve 101 can be controlled to open the valve; the lower valve actuator 73 is limited by a limit piece 76 with a waist-shaped groove installed on the valve opening mechanism mounting seat 71;

[0042] In this embodiment, a purging and cleaning mechanism 8 connected to the inner cavity of the device cavity 2 and a vacuuming mechanism 9 connected to the inner cavity are also installed on the outer wall of the device cavity 2; the purging and cleaning mechanism 8 is used to purge compressed air into the device cavity 2, and at the same time, negative pressure is generated by the vacuuming mechanism 9 in the inner cavity of the device cavity 2 to form positive and negative pressure airflows to discharge the purged compressed air into a dust recovery and processing device. The purge pipe of the purge and cleaning mechanism 8 is extended into the inner cavity of the device cavity 2 by the action of the cylinder 81, and compressed air can be sprayed into the gap between the purge pipe and the installation pipe of the purge pipe at the same time to prevent dust from entering the gap when purging inside the cavity. After the purge is completed, the purge pipe is retracted, and the nozzle of the purge pipe is tightly matched with the machined parts welded on the device cavity 2 at an angle to form a seal;

[0043] The vacuum pumping mechanism 9 is connected and installed on the device cavity 2 via a clamp 91 .

[0044] The present invention effectively solves the problem of difficulty in docking the output shaft of the lower valve actuator 73 and the rotating shaft of the lower butterfly valve 101 due to position deviation during the lifting of the material turnover barrel and ensures concentricity through the guide of the output shaft of the lower valve actuator 73 in the valve opening mechanism 7 and the left and right movable design. The cavity purge and vacuum design effectively solves the problem of powder attached to the upper butterfly valve 3 and the inner wall of the device cavity 2 falling during the transfer of the material turnover barrel 100. The design of the elastic buffer 53 for top hanging and the guide structure 42 of the docking flange 4 can achieve the docking accuracy between the material turnover barrel 100 and the powder delivery pipe.

[0045] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A double butterfly valve solid preparation feeding device, which is used for feeding material into a material turnover barrel, and a lower butterfly valve is installed at the inlet of the material turnover barrel, characterized in that: The double butterfly valve solid preparation feeding device comprises: a mounting plate; A cylindrical device cavity located below the mounting plate, with at least three horizontally arranged connecting plates on the outer wall of the device cavity, each connecting plate being fixedly connected to the mounting plate via a vertical connecting rod; an upper butterfly valve mounted on the upper end of the device cavity; A lower end butt flange mounted on the cavity of the device, the flange surface of the butt flange is provided with a dovetail groove for mounting an inflatable sealing ring; A platform located above the mounting plate, the platform and the mounting plate are connected by a plurality of first connecting members, and the platform is hoisted by a plurality of second connecting members; A flexible connecting pipe with a lower end passing through the platform and the mounting plate and docked with the upper butterfly valve, wherein the upper end of the flexible connecting pipe is connected to a conveying pipeline for the solid preparation; A valve opening mechanism is fixedly connected to the mounting plate at an upper end and is located on a side of the device cavity. The valve opening mechanism includes a valve opening mechanism mounting seat and an upper valve opening actuator and a lower valve opening actuator which are arranged on the valve opening mechanism mounting seat. The output shaft of the upper valve opening actuator is coaxially arranged and fixedly connected with the transmission shaft of the upper butterfly valve; the lower valve opening actuator is installed on a sliding mechanism so as to be movable left and right, and an inclined groove wedge-shaped guiding docking is provided between the output shaft of the lower valve opening actuator and the transmission shaft of the lower butterfly valve.

2. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: The connecting plates include at least three groups of connecting plates, and each group of connecting plates includes two connecting plates arranged one above the other.

3. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: The end surface of the butt flange and the end surface of the lower butterfly valve are provided with a matching wedge-shaped guide structure.

4. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: There are four first connecting members in total, and each of the first connecting members is equipped with or has a buffer member installed beside it.

5. The double butterfly valve solid preparation feeding device according to claim 4, characterized in that: Each of the first connecting members includes a steel wire rope, at least one end of which is threadedly connected to the platform and the lifting block of the mounting plate through a bolt adjusting member, and the height of the four first connecting members is adjusted through the bolt adjusting member. The buffer member is a spring member.

6. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: The rotating shaft of the lower butterfly valve is provided with a self-locking workpiece, through which misoperation can be avoided and the valve plate of the lower butterfly valve can be automatically opened by force.

7. The double butterfly valve solid preparation feeding device according to claim 6, characterized in that: A blocking ring is installed on the output shaft of the lower valve actuator. When the material turnover barrel is lifted to make the lower butterfly valve dock with the docking flange, the blocking ring on the output shaft of the lower valve actuator first pushes open the self-locking workpiece of the lower butterfly valve so that the lower butterfly valve can be opened in a controlled manner.

8. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: The lower valve-opening actuator is limited by a limiting member with a waist-shaped groove installed on the valve-opening mechanism mounting seat.

9. The double butterfly valve solid preparation feeding device according to claim 1, characterized in that: A purging and cleaning mechanism connected to its inner cavity and a vacuum pumping mechanism connected to its inner cavity are also installed on the outer wall of the device cavity; compressed air is purged into the device cavity by the purging and cleaning mechanism, and negative pressure is generated by the vacuum pumping mechanism to form positive and negative pressure airflows in the inner cavity of the device cavity to discharge the purged compressed air into a dust recovery and processing device.

10. The double butterfly valve solid preparation feeding device according to claim 9, characterized in that: The purge pipe of the purge cleaning mechanism is extended into the inner cavity of the device cavity by the action of the cylinder, and a nozzle is installed on the purge pipe and is closely matched with the machined parts welded on the device cavity at an angle to form a seal; The vacuum pumping mechanism is mounted on the device cavity through a clamp.

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