Transfer hopper butt-joint discharging device

Abstract

The utility model discloses a transfer hopper butt-joint discharging device which comprises an upper support and a lower support which are connected together through a butt-joint assembly, and a transfer hopper, a conical discharging valve and a discharging port are sequentially arranged in a cavity formed in the upper support and the lower support from top to bottom. The conical discharging valve is arranged at the bottom of the transfer hopper and comprises a valve body, a jacking air cylinder fixedly arranged in the valve body and a tip cone connected with the jacking air cylinder and extending into the transfer hopper, a valve body air inlet communicated with a pneumatic component of the jacking air cylinder is formed in one end of the valve body, and the tip cone ascends to form a discharging channel after the jacking air cylinder is ventilated. The valve body blanking requirement is met; the butt joint assembly meets the requirement for conveying an air source to the air inlet of the valve body. According to the utility model, the conveying and blanking requirements of powder with different free-flowing properties are met, the problem of powder residue after blanking is solved, and good sealing performance can be realized in the transfer process of the transfer hopper through a butt-joint blanking method.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of superfine powder feeding in weapon ammunition combat unit charge, engine charge, and specifically relates to a transfer hopper butt joint unloading device. BACKGROUND

[0002] In the field of superfine powder automatic feeding in PBX casting explosive preparation in combat unit charge and composite solid propellant preparation in engine charge, including superfine explosive, superfine ammonium perchlorate powder and other powder, such as 120 mesh octogen, 5 kinds of hexogen, superfine ammonium perchlorate powder and other powder material are more and more applied. The main role of superfine explosive is to perform particle grading with coarse particle size explosive, thereby reducing the viscosity of high solid content mixed explosive slurry, ensuring the flowability of the slurry and meeting the needs of casting charge process. The impact sensitivity of octogen in PBX casting explosive is 100%, the friction sensitivity is 100%, the impact sensitivity of hexogen is 80±8%, and the friction sensitivity is 76±8%, and the sensitivity is relatively high, and the safety risk in the production process is large. During the process of superfine explosive feeding, the explosive has high sensitivity and poor flowability, and the explosive particles are easy to adhere and agglomerate in the hopper and pipeline, and the explosive is difficult to realize automatic conveying. Especially, static electricity and dust are easy to be generated during the explosive conveying process, which brings safety risk. At present, manual explosive feeding, transfer and feeding and other dangerous operations are still needed in most cases. Therefore, it is urgent to break through the superfine explosive automatic feeding process technology, realize the unmanned production process, master the automatic production process equipment technology and improve the intrinsic safety degree of the production site. The powder feeding has the characteristics of large conveying capacity, high batch degree and easy accumulation of powder wall, and the poor sealing of butt joint unloading in the existing feeding process is a common technical problem, which needs to be considered from the structure to realize both smooth unloading process and low powder unloading residual rate, and on this basis, the environment of the powder is ensured to have good sealing property. CONTENT OF THE UTILITY MODEL

[0003] To meet the above technical requirements, the utility model aims at providing a transfer hopper butt joint unloading device, which can not only realize smooth unloading process and low powder unloading residual rate from the structure, but also ensure that the environment of the powder has good sealing property on this basis.

[0004] In order to achieve the above object, the utility model discloses technical scheme is: a kind of transfer hopper docking blanking device, including the upper support and lower support connected together by a docking assembly, the cavity formed in the inside of upper support and lower support is equipped with transfer hopper, conical blanking valve and blanking port from top to bottom in sequence;The conical blanking valve is located at the bottom of transfer hopper, including a valve body, the top lift cylinder fixedly arranged in the inside of valve body and the top cone connected with top lift cylinder and inserted into the inside of transfer hopper, one end of valve body is equipped with the valve body air inlet in communication with the pneumatic components of top lift cylinder, after top lift cylinder ventilation, top cone rises and forms blanking passage, meets the blanking requirement of valve body;The docking assembly meets the gas source delivery to valve body air inlet.

[0005] Further, the outer wall of the transfer hopper is provided with a plurality of air vibrations.

[0006] The edge of the top cone is provided with an anti-static sealing strip at the contact position with the valve body.

[0007] The top lift cylinder is covered with an anti-static cloth.

[0008] The top cone is connected with the telescopic end of the top lift cylinder through a connecting block.

[0009] The docking assembly includes a docking plug arranged at the bottom of the upper support and a docking socket arranged at the top of the lower support, the docking plug and the docking socket are pressed tightly and communicated under the action of gravity, and the upper part of the docking plug is connected with the valve body air inlet through the hopper air outlet channel and the air outlet pipeline in sequence, the lower part of the docking socket is communicated with the lower support air inlet channel and the air inlet pipeline in sequence, and the air inlet pipeline is connected with the external gas source.

[0010] The air outlet pipeline is arranged along the vertical direction of the four legs of the upper support, and the air inlet pipeline is arranged along the vertical direction of the four legs of the lower support.

[0011] The use method of the transfer hopper docking blanking device includes the following steps:

[0012] 1) The docking assembly on the upper support and the lower support is prepared for docking;

[0013] 2) The docking plug and the docking socket in the docking assembly are pressed tightly, and the docking plug and the docking socket are ventilated and communicated under the action of gravity;

[0014] 3) The external gas source passes through the air inlet pipeline, the lower support air inlet channel, the docking socket, the docking plug, the hopper air outlet channel, the air outlet pipeline and the valve body air inlet in sequence, enters the pneumatic components through the valve body air inlet, and reaches the ventilation state;

[0015] 4) The top lift cylinder in the conical blanking valve is lifted under the control of the pneumatic components in the ventilation state, and the top cone is ejected from the valve body to form a blanking passage;

[0016] 5) Powder gravity unloading and open air vibration auxiliary unloading.

[0017] The transfer hopper in the utility model is used for carrying different flowability powder, and has high batch degree, the inner wall is mirror polished, and the unloading process has the characteristics of preventing powder residue and edge sticking, and the air vibration is used to further reduce the powder residue in the unloading process.

[0018] The conical unloading valve in the utility model is installed at the bottom of the transfer hopper, the valve body edge adopts anti-static sealing design, a large-thrust jacking air cylinder is installed in the valve body, the jacking air cylinder is retracted in the ungas state, the conical unloading valve is tightly closed, and powder scattering in the carrying process is prevented; the jacking air cylinder can jack 1T bearing capacity in the air state, the top cone is jacked out to form a unloading channel for powder unloading.

[0019] The utility model docking assembly is docked with the docking plug and the docking socket, the docking plug is installed on the four legs of the upper support, the docking socket is installed on the top of the lower support, and the external air source is kept closed and cut off in the undocking state; after docking, the docking assembly is pressed tightly, and the docking plug and the docking socket are in air communication under the action of gravity.

[0020] The utility model has the advantages that the different flowability powder unloading requirements are met, the powder residue problem after unloading is solved, and the docking unloading method can realize good sealing of the transfer hopper in the transfer process. DRAWINGS

[0021] The structure and technical features of the utility model will be further described in combination with the drawings and examples.

[0022] Figure 1 It is a structural schematic view of the utility model.

[0023] Figure 2 It is a structural schematic view of the docking assembly in the utility model.

[0024] Figure 3 It is a gas source conveying schematic view of the docking assembly after docking in the utility model.

[0025] Figure 4 It is a structural schematic view of the conical unloading valve in the utility model.

[0026] Figure 5 It is a structural schematic view of the conical unloading valve in the utility model.

[0027] ATTACHMENT Figures 1-5In the specific embodiment, 1. transfer hopper, 2. conical discharge valve, 3. jacking cylinder, 4. air vibration, 5. butt joint assembly, 6. air outlet pipeline, 7. air inlet pipeline, 8. upper support, 9. hopper air outlet passage, 10. butt joint plug, 11. lower support air inlet passage, 12. butt joint socket, 13. top cone, 14. connecting block, 15. anti-static sealing strip, 16. valve body air inlet, 17. anti-static cloth, 18. discharge passage, 19. lower support, 20. discharge port, 21. valve body. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model is described in detail in combination with specific embodiments, but the embodiments do not represent all embodiments of the utility model. Embodiments performed by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0029] ATTACHMENT Figures 1-5 It is an embodiment of the utility model, discloses a kind of transfer hopper butt joint discharge device, including the upper support 8 and lower support connected together by a butt joint assembly 5, the cavity formed in the upper support 8 and lower support inside is equipped with transfer hopper 1, conical discharge valve 2 and discharge port 20 from top to bottom in sequence;The conical discharge valve 2 is located at the bottom of transfer hopper 1, including a valve body 21, jacking cylinder 3 fixedly arranged in the inside of valve body 21 and top cone 13 connected with jacking cylinder 3 and extending into the inside of transfer hopper 1, the top cone is connected with the telescopic end of jacking cylinder by a connecting block, one end of valve body 21 is equipped with valve body air inlet 16 communicated with the pneumatic components of jacking cylinder 3, after jacking cylinder 3 ventilation, top cone 13 rises and forms discharge passage 18, meets the discharge requirement of valve body.

[0030] The outer wall of the transfer hopper 1 is provided with a plurality of air vibrations 4, which can assist in discharging.

[0031] The jacking cylinder 3 is covered with an anti-static cloth 17 on the outside, to avoid static electricity generated by the jacking cylinder during discharging, which affects the discharging.

[0032] The butt joint assembly 5 meets the delivery of gas source to the valve body air inlet 16, the butt joint assembly 5 includes a butt joint plug 10 arranged at the bottom of the upper support 8 and a butt joint socket 12 arranged at the top of the lower support 19, the butt joint plug 10 is pressed tightly and communicated with the butt joint socket 12 under the action of gravity, and the upper part of the butt joint plug 10 is connected with the valve body air inlet 16 through the hopper air outlet passage 9, the air outlet pipeline 6 in sequence, the lower part of the butt joint socket 12 is communicated with the lower support air inlet passage 11 and the air inlet pipeline 7 in sequence, and the air inlet pipeline 7 is connected with the external gas source. The air outlet pipeline 9 is arranged along the vertical direction of the four legs of the upper support 8, and the air inlet pipeline 7 is arranged along the vertical direction of the four legs of the lower support 19.

[0033] The conical discharge valve 2 is installed at the bottom of the transfer hopper 1. The top of the valve body adopts a top cone design to reduce the contact area between the top and the powder. The top cone 13 is connected to the lifting cylinder 3 by a connecting block 14 inside. The edge of the top cone 13 is provided with an anti-static sealing strip 15 at the contact point with the valve body 21, which plays a sealing role. Its sealing effect has been proven in many fields. A high-thrust lifting cylinder 3 is installed inside the valve body. When the lifting cylinder 3 is not ventilated, it retracts and the conical discharge valve 2 is tightly closed to prevent the powder from scattering during transportation. When ventilated, the lifting cylinder can lift a load of 1T to open the valve body for powder discharge.

[0034] The docking assembly 5 consists of a docking plug 10 and a docking socket 12. The docking plug 10 is installed on the four legs of the transfer hopper 1 and connected to the hopper's air outlet channel 9. The docking socket 12 is installed on the lower support and connected to the lower support's air inlet channel 11. In the un-docked state, it remains closed and isolates the external air source. After docking, the docking assemblies 5 are pressed together, and under the action of gravity, the docking plug 10 pushes the docking socket 12 out of the air vent. After the air source is connected, it is connected by the air inlet pipe 7, which is connected to the hopper's air outlet channel 9 and the air outlet pipe 6 via the docking assembly 5. The air outlet pipe 6 is connected to the valve body's air inlet 16, and the overall air supply process of the system is completed.

[0035] After ventilation is completed, the lifting cylinder 3 lifts the top cone 13, forming a feeding channel 18 between it and the transfer hopper 1. The powder will be fed by gravity. The lifting cylinder 3 and the powder are physically isolated by an anti-static cloth 17. The air vibration 4 is turned on to transmit the vibration to the inner wall of the hopper, ensuring that there is no sticking to the wall during the powder feeding process, and further reducing the powder residue rate.

[0036] The embodiments of this utility model are performed as follows: the docking components on the upper and lower supports are prepared for docking; the docking plug and docking socket in the docking components are pressed together, and under the action of gravity, the docking plug and docking socket are connected by air; the external air source passes through the air inlet pipe, the air inlet channel of the lower support, the docking socket, the docking plug, the air outlet channel of the hopper, the air outlet pipe and the air inlet of the valve body in sequence, and enters the pneumatic components through the air inlet of the valve body to achieve the air supply state; the lifting cylinder in the conical feeding valve is lifted under the control of the pneumatic components in the air supply state, pushing the top cone out of the valve body to form a feeding channel; the powder is fed by gravity and the air vibration assisted feeding is activated.

[0037] The present invention proposes a material feeding method for connecting and discharging transfer hoppers. After debugging and actual use, it can achieve good powder feeding and sealing performance, with significant overall effect, and plays a positive role in the research of powder feeding.

Claims

1. A material handling and unloading device for a transfer hopper, comprising an upper support and a lower support connected together by a docking assembly, characterized in that: The cavity formed inside the upper and lower supports is provided with a transfer hopper, a conical discharge valve, and a discharge port in sequence from top to bottom. The conical discharge valve is located at the bottom of the transfer hopper and includes a valve body, a lifting cylinder fixed inside the valve body, and a top cone connected to the lifting cylinder and extending into the transfer hopper. One end of the valve body is provided with a valve body air inlet that communicates with the pneumatic components of the lifting cylinder. After the lifting cylinder is vented, the top cone rises to form a discharge channel, which meets the discharge requirements of the valve body. The docking assembly is used to supply air to the valve body air inlet.

2. The material handling and unloading device for the transfer hopper according to claim 1, characterized in that: The outer wall of the transfer hopper is equipped with multiple air vibrations.

3. The material handling and unloading device for the transfer hopper according to claim 1, characterized in that: An anti-static sealing strip is provided at the contact point between the edge of the top cone and the valve body.

4. The material handling and unloading device for the transfer hopper according to claim 1, characterized in that: The lifting cylinder is covered with an anti-static cloth.

5. The material handling and unloading device for the transfer hopper according to claim 1, characterized in that: The top cone is connected to the telescopic end of the lifting cylinder via a connecting block.

6. The material handling and unloading device for the transfer hopper according to claim 1, characterized in that: The docking assembly includes a docking plug located at the bottom of the upper support and a docking socket located at the top of the lower support. The docking plug and the docking socket are pressed together under the action of gravity. The upper part of the docking plug is connected to the air inlet of the valve body in sequence through the air outlet channel of the hopper and the air outlet pipe. The lower part of the docking socket is connected to the air inlet channel of the lower support and the air inlet pipe in sequence. The air inlet pipe is connected to an external air source.

7. The material handling and unloading device for the transfer hopper according to claim 6, characterized in that: The air outlet pipe is arranged vertically along the four legs of the upper support, and the air inlet pipe is arranged vertically along the four legs of the lower support.

Images