Split type combined spray valve

Abstract

The invention discloses a split type combined spray valve. The split type combined spray valve comprises a valve body, a transition piece and a spray head plate. The valve body is of a closed structure, a front end cover of the valve body is an air inlet end cover, an air storage pipe is installed in a cavity of the valve body, and the front end and the rear end of the air storage pipe are fixedly connected with the air inlet end cover and a valve sealing end cover at the rear end of the valve body respectively. The valve plates on the left side and the right side of the valve body are respectively provided with an air inlet path air hole and an air outlet path air hole, the valve plate on the top face is provided with an air outlet path air hole, and electromagnetic valves are connected to the positions, corresponding to the air inlet path air hole and the air outlet path air hole, of the valve plate. A transition piece is fixed to a valve plate on the top face of the valve body, and a plurality of transition air path air holes are formed in the transition piece. A spray head plate is fixed to the top face of the transition piece, a plurality of spray holes are formed in the top face of the spray head plate, and the multiple transition air path air holes correspond to the spray holes in a one-to-one mode and are coaxially arranged with the spray holes. The structure is low in cost, detachable and convenient to overhaul and maintain in the later period.

Description

Technical Field

[0001] The invention relates to a valve, in particular to a split type combined spray valve. Background Art

[0002] The gangue dry separator mainly includes feeding mechanism, conveying mechanism, identification mechanism, control system, actuator and other main systems. It is a new type of physical beneficiation method. The raw coal is conveyed to the feeding mechanism through the raw coal belt. The feeding mechanism screens the raw coal so that the block material enters the conveying mechanism. The conveying mechanism smoothly conveys the block raw material to the bottom of the identification mechanism. The identification mechanism is an X-ray transmitter located above the conveyor belt and an X-ray receiver located below the conveyor belt. The control system processes the X-ray signal received by the receiver to distinguish different types of materials such as coal, gangue, and wood blocks, and sends the removal command to the actuator. The actuator removes the rejected materials through the nozzle according to the command of the control system.

[0003] The existing spray valve structures for gangue separators are mostly integral, so the manufacturing process is relatively complex and the cost is high. In addition, the integral spray valve structure is not convenient for later inspection and maintenance. Summary of the invention

[0004] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a split type combined spray valve which has a simple structure, is easy to manufacture and has a low maintenance cost.

[0005] In order to realize the above functions, the technical solution adopted by the present invention is:

[0006] A split combined spray valve for a coal gangue separator of the present invention comprises a valve body, wherein the valve body is a closed structure, the front end cover of the valve body is an air inlet end cover, an air inlet hole is opened on the air inlet end cover, an air storage pipe is installed in the cavity of the valve body, an air outlet hole is opened on the air storage pipe, the front and rear ends of the air storage pipe are respectively fixedly connected with the air inlet end cover and the valve sealing end cover at the rear end of the valve body, and the front end of the air storage pipe is connected with the air inlet hole;

[0007] Inlet and exhaust path air holes are respectively opened on the valve plate on the left side and the valve plate on the right side of the valve body, and exhaust path air holes are opened on the valve plate on the top surface of the valve body, wherein the inlet and exhaust path air holes on the left valve plate and the right valve plate are divided into two rows, each row of inlet and exhaust path air holes includes a plurality of inlet and exhaust path air holes arranged at intervals on the left and right sides, and two inlet and exhaust path air holes correspondingly arranged on the upper and lower sides of the two rows of inlet and exhaust path air holes constitute a group of inlet and exhaust path air holes;

[0008] A solenoid valve is connected to the valve plate at a position corresponding to each group of inlet and exhaust air holes, and the inlet hole and the exhaust hole of the solenoid valve are connected to one of the inlet and exhaust air holes in each group of inlet and exhaust air holes. The first inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the exhaust hole of the solenoid valve is connected to the exhaust air hole on the top surface of the valve plate through a hose, and the second inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the inlet hole of the solenoid valve is connected to the outlet hole of the gas storage pipe through a hose.

[0009] A transition piece is fixed on the valve plate on the top surface of the valve body, and a plurality of transition gas path holes are opened on the transition piece. A nozzle plate is fixed on the top surface of the transition piece, and a plurality of spray holes are opened on the top surface of the nozzle plate. The plurality of transition gas path holes correspond to the spray holes one by one and are coaxially arranged.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The base plate, gas storage pipe, valve end cover, air inlet end cover, valve plate, transition piece, and nozzle plate can be assembled on-site according to actual needs, reducing the hoisting and transportation operations of the entire spray valve structure during the installation process; compared with the existing integral spray valve for coal gangue sorting machines, the manufacturing process is relatively simple, the cost is low, it can be disassembled, and it is also convenient for later inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , Figure 2 They are respectively overall explosion schematic diagrams of the split combined spray valve for the coal gangue separator of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] See also Figure 1 , Figure 2As shown, a split type combined spray valve for a gangue sorting machine of the present invention comprises a valve body, the valve body is a closed structure, preferably, the valve body is a rectangular parallelepiped, comprising a base plate 1 on the bottom surface, valve plates on the top surface and left and right side walls, an air inlet end cover on the front wall, and a valve sealing end cover 3 at the rear end of the valve body. Among them, the front end cover of the valve body is an air inlet end cover 4, an air inlet hole 8 is opened on the air inlet end cover, an air storage pipe 2 is installed in the cavity of the valve body, an air outlet hole 9 is opened on the air storage pipe, and the front and rear ends of the air storage pipe are respectively fixedly connected with the air inlet end cover and the valve sealing end cover 3 at the rear end of the valve body. The fixedly connected structure can be formed by respectively slotting the inner wall of the air inlet end cover and the inner wall of the valve sealing end cover, and the front and rear ends of the air storage pipe are respectively inserted into the corresponding slots and fixedly arranged. The front end of the air storage pipe 2 is connected with the air inlet hole. In this way, the response speed of the valve can be increased and the working efficiency can be improved.

[0015] Inlet and exhaust path air holes 10 are respectively opened on the valve plate on the left side and the valve plate on the right side that constitute the valve body, and exhaust path air holes 11 are opened on the valve plate 5 that constitutes the top surface of the valve body, wherein the inlet and exhaust path air holes on the left valve plate and the right valve plate are divided into two rows, upper and lower, and each row of inlet and exhaust path air holes includes a plurality of inlet and exhaust path air holes arranged at intervals on the left and right, and two inlet and exhaust path air holes correspondingly arranged upper and lower in the two rows of inlet and exhaust path air holes constitute a group of inlet and exhaust path air holes.

[0016] A solenoid valve is connected to the valve plate at the position corresponding to each group of inlet and exhaust air holes, and the inlet hole and the exhaust hole of the solenoid valve are connected to one of the inlet and exhaust air holes in each group of inlet and exhaust air holes. The first inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the exhaust hole of the solenoid valve is connected to the exhaust air hole 11 on the top surface of the valve plate 5 through a hose, and the second inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the inlet hole of the solenoid valve is connected to the outlet hole 9 of the gas storage pipe through a hose.

[0017] A transition piece 6 is fixed on the valve plate on the top surface of the valve body, and a plurality of transition gas path holes are opened on the transition piece 6. A nozzle plate 7 is fixed on the top surface of the transition piece, and a plurality of spray holes 13 are opened on the top surface of the nozzle plate. The plurality of transition gas path holes correspond to the spray holes one by one and are arranged coaxially.

[0018] Preferably, the transition piece is a T-shaped structure, the horizontal plate of the T-shaped structure is fixedly connected to the valve plate on the top surface, and the plurality of transition gas path air holes are opened on the vertical plate of the T-shaped structure. The vertical plate is provided with slots around it, and the nozzle plate is supported on the slots for positioning.

[0019] The working principle of the present invention is as follows: the air inlet end cover 4 of the valve body is connected to a gas storage tank with high-pressure gas, and the high-pressure gas in the gas storage tank enters the gas storage pipe 2 of the valve body through the air inlet hole 8. When the blowing action is not required, the solenoid valves on the left and right valve plates 5 are in a closed state, and the high-pressure gas in the gas storage pipe 2 cannot reach the exhaust path air holes 11 of the top valve plate from the air outlet hole 9 through the air inlet and exhaust path air holes 10 of the left and right valve plates. When it is necessary to blow air on the coal gangue that has been arranged and tested, the solenoid valve is in an open state, and the high-pressure gas in the gas storage pipe 2 first flows from the air outlet 9 through the hose into the air inlet and exhaust holes of the valve plates 5 on the left and right sides, and then enters the solenoid valve through the air inlet of the solenoid valve, and then flows through the air outlet of the solenoid valve, the air inlet and exhaust holes on the valve plates 5 on the left and right sides connected to the air outlet of the solenoid valve, and the hose into the exhaust hole 11 of the valve plate on the top surface, and then through the transition air hole 12 of the transition piece 6 to be ejected from the nozzle hole 13 of the nozzle plate 7. The ejected gas blows onto the coal gangue to change its movement trajectory so that it reaches the diversion box.

[0020] The above only illustrates the principle and effect of the present invention, but is not used to limit the present invention. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope that the technical content disclosed by the present invention can cover without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" etc. quoted in this specification are only for the convenience of narration, but not for limiting the scope that the present invention can implement. The change or adjustment of its relative relationship should also be regarded as the scope that the present invention can implement without substantially changing the technical content.

Claims

1. A split combined spray valve for a coal gangue separator, comprising a valve body, wherein the valve body is a closed structure, and is characterized in that: The front end cover of the valve body is an air inlet end cover, an air inlet hole is opened on the air inlet end cover, an air storage pipe is installed in the cavity of the valve body, an air outlet hole is opened on the air storage pipe, the front and rear ends of the air storage pipe are respectively fixedly connected with the air inlet end cover and the valve sealing end cover at the rear end of the valve body, and the front end of the air storage pipe is connected with the air inlet hole; Inlet and exhaust path air holes are respectively opened on the valve plate on the left side and the valve plate on the right side of the valve body, and exhaust path air holes are opened on the valve plate on the top surface of the valve body, wherein the inlet and exhaust path air holes on the left valve plate and the right valve plate are divided into two rows, each row of inlet and exhaust path air holes includes a plurality of inlet and exhaust path air holes arranged at intervals on the left and right sides, and two inlet and exhaust path air holes correspondingly arranged on the upper and lower sides of the two rows of inlet and exhaust path air holes constitute a group of inlet and exhaust path air holes; A solenoid valve is connected to the valve plate at a position corresponding to each group of inlet and exhaust air holes, and the inlet hole and the exhaust hole of the solenoid valve are connected to one of the inlet and exhaust air holes in each group of inlet and exhaust air holes. The first inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the exhaust hole of the solenoid valve is connected to the exhaust air hole on the top surface of the valve plate through a hose, and the second inlet and exhaust air hole in each group of inlet and exhaust air holes connected to the inlet hole of the solenoid valve is connected to the outlet hole of the gas storage pipe through a hose. A transition piece is fixed on the valve plate on the top surface of the valve body, and a plurality of transition gas path holes are opened on the transition piece. A nozzle plate is fixed on the top surface of the transition piece, and a plurality of spray holes are opened on the top surface of the nozzle plate. The plurality of transition gas path holes correspond to the spray holes one by one and are coaxially arranged.

2. The split type combined spray valve for gangue separator according to claim 1, characterized in that: The transition piece is a T-shaped structure, the horizontal plate of the T-shaped structure is fixedly connected to the valve plate on the top surface, the multiple transition air path holes are opened on the vertical plate of the T-shaped structure, and slots are opened around the vertical plate. The nozzle plate is supported on the slots for positioning.

3. The split type combined spray valve for gangue separator according to claim 1, characterized in that: The fixedly connected structure is provided by respectively opening grooves on the inner wall of the air inlet end cover and the inner wall of the valve sealing end cover, and the front and rear ends of the air storage pipe are respectively inserted into the corresponding grooves for fixed arrangement.

4. The split type combined spray valve for gangue separator according to claim 1, characterized in that: The closed valve body is a rectangular parallelepiped, including a base plate at the bottom, valve plates at the top and left and right side walls, an air inlet end cover at the front wall and a valve sealing end cover at the rear end of the valve body.

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