Pressure medium working unit for unblocking stock bin

Abstract

The utility model belongs to the field of unblocking devices, and particularly relates to a pressure medium working unit for unblocking a stock bin, according to the pressure medium working unit, an exhaust valve is arranged on a metal straight pipe, when the pressure medium working unit is used, the exhaust valve is closed, and the stock bin unblocking device is normally used. When the pressure medium working unit needs to be overhauled, the exhaust valve is opened firstly, the pressure medium in the pipe is discharged, pressure is released, potential safety hazards are eliminated, and follow-up safe disassembly is facilitated. Whether the electromagnetic valve is damaged or not is judged by opening the electromagnetic valve to observe whether the exhaust valve exhausts gas or not, the steps of dismounting and mounting the high-pressure hose are omitted, and therefore the maintenance time is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clogging removal devices, and particularly relates to a pressure medium working unit for clogging removal of a stock bin. BACKGROUND

[0002] When a stock bin storing solid particles is operated to remove clogging, pressure medium (compressed air or water) is delivered to the working unit through a pipeline to form a jet at the nozzle end hole. Due to the expansion, flow and high viscosity of the material in the bin and the extrusion of the pressure in the bin, the nozzle end hole is easily clogged. When the nozzle is clogged, a high-pressure sealed space (0-6 MPa) is formed inside the working unit pipeline. When the hose is disassembled for maintenance, the high-pressure sealed space is suddenly released, which poses a safety hazard to the maintenance personnel. At the same time, the exhaust through the nozzle end hole cannot be used to determine whether the electromagnetic valve is damaged during maintenance. The hose needs to be disassembled to determine whether the electromagnetic valve is damaged by checking whether gas is discharged when the electromagnetic valve is opened. Since the process of disassembling and assembling the hose is added, the maintenance time is longer. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a pressure medium working unit for clogging removal of a stock bin, which solves the problems of safety hazards and long maintenance time when the working unit is maintained.

[0004] To achieve the above-mentioned purpose, the present application provides a pressure medium working unit for clogging removal of a stock bin, which comprises a nozzle, a metal straight pipe, a mounting assembly, an exhaust valve, a high-pressure hose, an electromagnetic valve and a filter valve. The nozzle is installed at the front end of the metal straight pipe. The mounting assembly is used to mount the metal straight pipe on the outer wall of the stock bin. The stock bin is provided with a jet hole for the nozzle to extend into. The rear end of the metal straight pipe is connected to the outlet of the electromagnetic valve through the high-pressure hose. The filter valve is installed at the inlet of the electromagnetic valve and is used to connect the pipeline for delivering pressure medium. The side wall of the metal straight pipe is provided with an exhaust interface, and the exhaust valve is installed on the exhaust interface.

[0005] Preferably, the exhaust valve comprises a manual ball valve, and the filter valve comprises a filter ball valve.

[0006] Preferably, the inlet of the electromagnetic valve and the high-pressure hose are connected through a union joint, and the outlet of the electromagnetic valve and the filter valve are connected through a union joint.

[0007] Preferably, the nozzle and the front end of the metal straight pipe are connected through threads, and the outer diameter of the nozzle is the same as the outer diameter of the metal straight pipe.

[0008] Preferably, the mounting assembly comprises a fixing cylinder, a mounting cylinder, a connecting screw, a pressing block and a locking screw, the fixing cylinder has an inner diameter larger than an outer diameter of the metal straight pipe, the fixing cylinder is welded to an outer wall of the silo around the injection hole, the mounting cylinder is mounted at one end of the fixing cylinder away from the silo through the connecting screw, the mounting cylinder is coaxially arranged with the fixing cylinder, an inner diameter of the mounting cylinder is matched with the outer diameter of the metal straight pipe, a semicircular annular notch is arranged at a rear end of the mounting cylinder, and the pressing block is mounted on the notch through the locking screw, the pressing block is used for locking the metal straight pipe arranged in the mounting cylinder.

[0009] Preferably, the end of the fixing cylinder welded to the outer wall of the silo is beveled, and the fixing cylinder, the mounting cylinder and the injection hole are coaxially arranged.

[0010] Preferably, the pressing block is semicircular annular.

[0011] The pressure medium working unit for silo unblocking provided by the application has the beneficial effects that, compared with the prior art, the pressure medium working unit of the application is provided with an exhaust valve on the metal straight pipe, when the pressure medium working unit is in use, the exhaust valve is closed, and the silo unblocking device is normally used. When the pressure medium working unit needs to be overhauled, the exhaust valve is first opened, the pressure medium in the pipe is discharged, the pressure is released, the safety hazard is eliminated, and subsequent safe disassembly is facilitated. Whether the electromagnetic valve is damaged is judged by observing whether gas is discharged from the exhaust valve through the opening of the electromagnetic valve, thereby the steps of dismounting and mounting the high-pressure hose are saved, and the overhaul time is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0013] Wherein:

[0014] Figure 1 is a perspective structural schematic diagram of the pressure medium working unit for silo unblocking shown in an embodiment of the application;

[0015] Figure 2 is a schematic diagram of the pressure medium working unit mounted on the outer wall of the silo shown in an embodiment of the application;

[0016] Figure 3 is an exploded view of the pressure medium working unit shown in an embodiment of the application;

[0017] Figure 4is a schematic view of the connection between the metal straight pipe and the mounting assembly in the pressure medium operating unit according to an embodiment of the present application;

[0018] Figure 5 is Figure 4 is a sectional view of the mounting assembly in the structure shown;

[0019] Figure 6 is an exploded view of the mounting assembly in the pressure medium operating unit according to an embodiment of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, silo;

[0022] 10, nozzle; 20, metal straight pipe; 21, exhaust interface; 30, mounting assembly; 31, fixing cylinder; 32, mounting cylinder; 321, notch; 33, connecting screw; 34, pressing block; 35, locking screw; 40, exhaust valve; 50, high-pressure hose; 60, electromagnetic valve; 70, filter valve; 80, union. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0027] As described in the background, there are safety hazards and long maintenance time when maintaining the pressure medium working unit.

[0028] To solve the above problems, the embodiment of the present application provides a pressure medium working unit for clearing the blockage of the stock bin, as shown in the drawings, Figures 1-2 The pressure medium working unit comprises a nozzle 10, a metal straight pipe 20, a mounting assembly 30, an exhaust valve 40, a high-pressure hose 50, an electromagnetic valve 60 and a filter valve 70. The nozzle 10 is installed at the front end of the metal straight pipe 20. The mounting assembly 30 is used to install the metal straight pipe 20 on the outer wall of the stock bin 1. The stock bin 1 is provided with a jet hole (not shown in the figure) for the nozzle 10 to extend into. The rear end of the metal straight pipe 20 is connected with the outlet of the electromagnetic valve 60 through the high-pressure hose 50. The filter valve 70 is installed at the inlet of the electromagnetic valve 60. The filter valve 70 is used to connect the pipeline for conveying the pressure medium. The filter valve 70 plays a role of filtering the pressure medium. The side wall of the metal straight pipe 20 is provided with an exhaust interface 21. The exhaust valve 40 is installed on the exhaust interface 21.

[0029] In the embodiment of the present application, the pressure medium working unit is provided with the exhaust valve 40 on the metal straight pipe 20. When the pressure medium working unit is in use, the exhaust valve 40 is closed. The stock bin clearing device is used normally. When the pressure medium working unit needs to be maintained, the exhaust valve 40 is opened first. The pressure medium in the high-pressure hose 50 is discharged. The pressure is released. The safety hazard is eliminated. It is convenient for subsequent safe disassembly. Whether the electromagnetic valve 60 is damaged is judged by observing whether the exhaust valve 40 discharges gas through the opening of the electromagnetic valve 60. The steps of disassembling and installing the high-pressure hose 50 are saved. Therefore, the maintenance time is reduced.

[0030] In one embodiment, as shown in the drawings, Figures 1-3 The exhaust valve 40 comprises a manual ball valve. The manual ball valve has simple structure, convenient operation and good sealing performance. The filter valve 70 comprises a filter ball valve. The filter ball valve is a combination of a ball valve and a filter. It has double functions of flow control and medium filtering. The structure is simple and the cost is low.

[0031] In one embodiment, as shown in the drawings, Figures 1-3 The inlet of the electromagnetic valve 60 and the high-pressure hose 50 are connected through a union joint 80. The outlet of the electromagnetic valve 60 and the filter valve 70 are also connected through the union joint 80.

[0032] Through the above arrangement, the electromagnetic valve 60 is connected with the high-pressure hose 50 and the filter valve 70 through threads. It is convenient for installation and disassembly. It is convenient for replacement after the electromagnetic valve 60 is damaged.

[0033] In one embodiment, as shown in the drawings, Figures 3-5As shown, the nozzle 10 is connected with the front end of the metal straight pipe 20 by screwing, and the outer diameter of the nozzle 10 is the same as that of the metal straight pipe 20. The nozzle 10 is connected with the metal straight pipe 20 by screwing, which has the advantages of simple and reliable connection, easy installation and disassembly of the nozzle 10, and easy replacement of the nozzle 10 when it cannot be used.

[0034] Further, as shown in Figure 2 、 Figures 4-6 , the mounting assembly 30 includes a fixed cylinder 31, a mounting cylinder 32, a connecting screw 33, a pressing block 34, and a locking screw 35. The inner diameter of the fixed cylinder 31 is greater than the outer diameter of the metal straight pipe 20 and the nozzle 10. The fixed cylinder 31 is used to be welded on the outer wall around the injection hole of the silo 1. The mounting cylinder 32 is mounted on the end of the fixed cylinder 31 away from the silo 1 by the connecting screw 33, and the mounting cylinder 32 is coaxially arranged with the fixed cylinder 31. The inner diameter of the mounting cylinder 32 is adapted to the outer diameter of the metal straight pipe 20 and the nozzle 10. The rear end of the mounting cylinder 32 is provided with a semicircular annular notch 321. The pressing block 34 is mounted on the notch 321 by the locking screw 35. The pressing block 34 is used to lock the metal straight pipe 20 arranged in the mounting cylinder 32. It can be understood that the fixed cylinder 31 serves as a mounting carrier, and the mounting cylinder 32, the pressing block 34, and the locking screw 35 cooperate to form a locker for locking the metal straight pipe 20. Preferably, the pressing block 34 is semicircular annular.

[0035] By arranging the mounting assembly 30 as above, when it is found that the nozzle 10 is blocked during subsequent inspection, the locking screw 35 is screwed, and the pressing block 34 is disassembled, so that the metal straight pipe 20 and the nozzle 10 can be pulled out of the injection hole through the mounting cylinder 32 and the fixed cylinder 31, which is simple and convenient to operate.

[0036] It should be noted that the metal straight pipe 20, as a pipe connecting the inside and outside of the silo 1, is affected by the site environment and the material for a long time, which may cause rusting and deformation of the metal straight pipe 20. When the nozzle 10 is disassembled and replaced, it may be extremely difficult to pull out the metal straight pipe 20 to replace the nozzle 10. As shown in Figures 4-6 , since the connecting screw 33 connects the fixed cylinder 31 and the mounting cylinder 32 along the axial direction parallel to the mounting cylinder 32, when the metal straight pipe 20 cannot be pulled out due to rusting, deformation, and material extrusion, the connecting screw 33 can be disassembled first, the mounting cylinder 32 is rotated to make the threaded holes thereon staggered with the threaded holes on the rear end surface of the fixed cylinder 31, then a screw with a longer length is screwed into the threaded hole on the mounting cylinder 32, so that the front end of the screw is abutted against the rear end surface of the fixed cylinder 31, and the screw is continuously screwed to push the mounting cylinder 32 outward away from the fixed cylinder 31, and then the metal straight pipe 20 is pulled out.

[0037] In a specific embodiment, as shown in Figures 2-6As shown, the end of the fixing cylinder 31 welded with the outer wall of the bin 1 is beveled, and the fixing cylinder 31, the mounting cylinder 32 and the injection hole are coaxially arranged.

[0038] By setting the end of the fixing cylinder 31 welded with the outer wall of the bin 1 as beveled, the contact area between the fixing cylinder 31 and the outer wall of the bin 1 is increased, thereby improving the welding firmness.

[0039] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0040] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be pointed out that for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A pressure medium working unit for silo unblocking, characterized in that The invention relates to a nozzle, a metal straight pipe, a mounting assembly, an exhaust valve, a high-pressure hose, a solenoid valve and a filter valve, the nozzle is installed at the front end of the metal straight pipe, the mounting assembly is used for mounting the metal straight pipe on the outer wall of a bin, the bin is provided with a spraying hole for the nozzle to extend into, the rear end of the metal straight pipe is connected with the outlet of the solenoid valve through the high-pressure hose, the filter valve is installed at the inlet of the solenoid valve, and the filter valve is used for connecting a pipeline for conveying pressure medium; the side wall of the metal straight pipe is provided with an exhaust interface, and the exhaust valve is installed on the exhaust interface.

2. Pressure medium working unit for clearing a blockage in a silo according to claim 1, characterized in that The exhaust valve comprises a manual ball valve, and the filter valve comprises a filter ball valve.

3. Pressure medium working unit for clearing a blockage in a silo according to claim 1, characterized in that, The inlet of the solenoid valve and the high-pressure hose are connected through a female joint, and the outlet of the solenoid valve and the filter valve are connected through a female joint.

4. Pressure medium working unit for clearing a blockage in a silo according to any one of claims 1-3, characterized in that, The nozzle and the front end of the metal straight pipe are connected through threads, and the outer diameter of the nozzle is the same as the outer diameter of the metal straight pipe.

5. Pressure medium working unit for clearing a blockage in a silo according to claim 4, characterized in that, The mounting assembly comprises a fixing cylinder, a mounting cylinder, a connecting screw, a pressing block and a locking screw, the inner diameter of the fixing cylinder is larger than the outer diameter of the metal straight pipe, the fixing cylinder is used for being welded on the outer wall around the spraying hole of the bin, the mounting cylinder is mounted on one end of the fixing cylinder away from the bin through the connecting screw, the mounting cylinder is coaxially arranged with the fixing cylinder, the inner diameter of the mounting cylinder is matched with the outer diameter of the metal straight pipe, the rear end of the mounting cylinder is provided with a semicircular annular notch, the pressing block is mounted on the notch through the locking screw, and the pressing block is used for locking the metal straight pipe penetratingly arranged in the mounting cylinder.

6. Pressure medium working unit for clearing a blockage in a silo according to claim 5, characterized in that The end, at which the fixing cylinder is welded with the outer wall of the bin, is beveled, and the fixing cylinder, the mounting cylinder and the spraying hole are coaxially arranged.

7. Pressure medium working unit for clearing a blockage in a silo according to claim 5, characterized in that The pressing block is semicircular annular.

Images