CN219101401U

CN219101401U - Main air shaft explosion door

Info

Publication number: CN219101401U
Application number: CN202222862392.5U
Authority: CN
Inventors: 付军亮; 付振恒; 付黄义; 任双利
Original assignee: Linzhou Taihang Mining Machine Equipment Factory Co ltd
Current assignee: Linzhou Taihang Mining Machine Equipment Factory Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-30
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a main air shaft explosion door, which comprises an air shaft main body, wherein an explosion door is covered at a wellhead of the air shaft main body, a sealing groove is formed in the periphery of the explosion door, the sealing groove is formed by combining two mutually communicated annular grooves, a sealing ring is welded at the edge of the bottom surface of the explosion door, and the sealing ring extends into one of the annular grooves of the sealing groove; according to the utility model, the outer cover is covered on the periphery of the explosion-proof door, so that the outer cover is prevented from being covered on the periphery of the cylinder seat by the integrally injection molded cylindrical structure, and then the outer cover is fixedly connected with the cylinder seat by penetrating bolts penetrating through the outer cover at the bottom of the hydraulic cylinder, so that the outer cover is connected with the explosion-proof door.

Description

Main air shaft explosion door

Technical Field

The utility model relates to the technical field of coal mines, in particular to an explosion door of a main air shaft.

Background

At present, the meaning of installing the explosion door at the upper opening of the vertical shaft is that after explosion happens in the pit, the shock wave pushes the explosion door open to release energy, so that the damage probability of the main ventilator can be reduced. When the mine is used for carrying out the reverse wind, the pressure plates around the explosion door are required to be manually rotated to press, so that the explosion door is prevented from being lifted in the reverse wind process to cause short circuit of wind flow; during the first hundred sixty regulations of coal mine safety regulations, the main ventilator must be opened during the period of stopping operation of the main ventilator, and the main ventilator is a vertical shaft for removing the inclined ventilator.

Patent number CN215408737U discloses an automatic opening and closing device of blast gate, including evenly installing in four stands of well head edge, every two adjacent all have crossbeam first and crossbeam second through the bolt fastening between the stand, around all open on the crossbeam first near both ends department has a through-hole first, around all open on the crossbeam second with through-hole second corresponding to the through-hole first, pass through-hole first and through-hole second are equipped with the pneumatic cylinder, cylinder liner upper end integrated into one piece of pneumatic cylinder has the bracing, the bracing take in on the crossbeam first, the well head upper cover has the blast gate, integrated into one piece has the installation piece on the blast gate, the pneumatic cylinder stretches out the end and is fixed in above the installation piece through the bolt. The utility model has the advantages that: the explosion-proof door can quickly respond under the condition of power supply failure, can quickly and safely open the explosion-proof door, and has triple insurance.

In the above scheme, because the explosion-proof door in this scheme is along using traditional water seal structure, under the effect of the blocking of explosion-proof door self structure, be difficult to observe the liquid level of liquid seal water, and then lead to the staff unable to learn the leakproofness of explosion-proof door to explosion-proof door sealed failure and take place the phenomenon of gas leakage, sealed reliability is poor, and again, the explosion-proof door does not set up protective structure in above-mentioned scheme, exposes under natural environment for a long time, is liable to the rust erosion phenomenon, shortens life.

Therefore, the main air shaft explosion door has the advantages of delaying corrosion of the explosion door and keeping and observing the sealing of the air shaft, and further solves the problems in the background technology.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a main air shaft explosion door.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: main air shaft explosion vent, including the air shaft main part, the well head department of air shaft main part has been covered and has been connected the explosion vent main part, and the periphery of explosion vent main part has been seted up sealed groove, sealed groove is formed by the combination of two ring grooves of mutual intercommunication, explosion vent main part bottom surface edge welding has the sealing ring, and the sealing ring extends to in one of them ring groove of sealed groove, the surface welding of explosion vent main part has the drum seat, the periphery of explosion vent main part has been covered and has been connected the outer shell, and the periphery of outer shell sets up a plurality of pillars, a plurality of the bottom of pillar all welds the mounting disc, and the surface of mounting disc passes through the peripheral fixed connection of bolt and air shaft main part, a plurality of the top welding of pillar has the shearing board, and the bottom of shearing the template is fixed with the pneumatic cylinder through the bolt, the bottom of pneumatic cylinder passes through the drum seat fixed connection of bolt and explosion vent main part.

As a further description of the above technical solution: the horn cover is welded at the port of the inner side of the wind shaft main body in an inverted mode, and an anti-backflow cavity is formed by the horn cover and the inner wall of the wind shaft main body.

As a further description of the above technical solution: the outer surface welding of explosion vent main part has a plurality of cylinder seats, the bottom surface of cutting the template corresponds the cylinder seat and installs a plurality of pneumatic cylinders.

As a further description of the above technical solution: the surface of the outer covering shell is integrally formed with a plurality of cylindrical shells, and the cylindrical shells are respectively covered with a plurality of cylindrical seats of the horn cover.

As a further description of the above technical solution: the hydraulic cylinder is communicated with an external hydraulic pump station through a pipeline.

As a further description of the above technical solution: screw holes are formed in the top surface of the cylinder seat.

The utility model has the following beneficial effects:

according to the utility model, the outer cover is covered on the periphery of the explosion-proof door main body, the outer cover is prevented from being covered on the periphery of the cylinder seat by virtue of the integrally injection molded cylindrical structure, then bolts penetrating through the outer cover are fixedly connected with the cylinder seat through the bolts penetrating through the bottom of the hydraulic cylinder, and the connection between the outer cover and the explosion-proof door main body is realized.

Drawings

FIG. 1 is a schematic view of a main shaft explosion vent of the present utility model;

FIG. 2 is a top view of the main shaft vent of the present utility model;

FIG. 3 is a schematic view of the explosion vent of the main shaft of the present utility model.

Legend description:

1. a wind shaft main body; 2. a horn cover; 3. an explosion door; 4. sealing grooves; 5. a support post; 6. cutting a plate; 7. a hydraulic cylinder; 8. an outer covering shell; 9. a seal ring; 10. a mounting plate; 11. a cylinder seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

According to an embodiment of the utility model, a main blast door is provided.

The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-3, a main air shaft explosion vent according to the embodiment of the utility model comprises an air shaft main body 1, an explosion vent main body 3 is covered at the wellhead of the air shaft main body 1, a sealing groove 4 is arranged at the periphery of the explosion vent main body 3, the sealing groove 4 is formed by combining two mutually communicated annular grooves, a sealing ring 9 is welded at the edge of the bottom surface of the explosion vent main body 3, the sealing ring 9 extends into one of the annular grooves of the sealing groove 4, a cylinder seat 11 is welded at the outer surface of the explosion vent main body 3, an outer covering shell 8 is covered at the periphery of the explosion vent main body 3, a plurality of support posts 5 are arranged at the periphery of the outer covering shell 8, a mounting disc 10 is welded at the bottoms of the support posts 5, the surface of the mounting disc 10 is fixedly connected with the periphery of the air shaft main body 1 through bolts, a shearing plate 6 is welded at the tops of the support posts 5, the bottom surface of the shearing plate 6 is fixedly provided with a hydraulic cylinder 7 through a bolt, the bottom end of the hydraulic cylinder 7 is fixedly connected with a cylinder seat 11 of the explosion-proof door main body 3 through the bolt, a plurality of hydraulic cylinders 7 on the shearing plate 6 are started to shrink, piston rods of the hydraulic cylinders 7 are driven to pull the explosion-proof door main body 3 through the cylinder seat 11, a sealing ring 9 of the explosion-proof door main body 3 is driven to be separated from liquid in a sealing groove 4, the explosion-proof door main body 3 is driven to be separated from a port of the air shaft main body 1, the opening of the explosion-proof door main body 3 is realized, so that the air shaft main body 1 is naturally ventilated, wherein a hydraulic pump station system of the hydraulic cylinder 7 is powered by a power grid or a storage battery, double guarantee is provided, the outer cover 8 is driven to be covered on the periphery of the explosion-proof door main body 3 through the cover of the outer cover 8, the cylindrical structure of the integral injection molding is prevented from being covered on the periphery of the cylinder seat 11, then the bolts penetrating through the bottom of the hydraulic cylinder 7 penetrate through the outer covering shell 8 to be fixedly connected with the cylinder seat 11, so that the connection between the outer covering shell 8 and the explosion-proof door main body 3 is realized, compared with the traditional explosion-proof door main body 3 structure which is directly exposed and installed, the outer covering shell 8 can serve as the contact surface between the explosion-proof door main body 3 and the external environment, corrosion suffered by the original explosion-proof door main body 3 is borne, on one hand, corrosion of the explosion-proof door main body 3 is delayed, on the other hand, the outer covering shell 8 is convenient to detach and replace, the service life of the explosion-proof door main body 3 is prolonged, meanwhile, the sealing groove 4 with the U-shaped cross section is arranged on the periphery of the air shaft main body 1, and two annular grooves which are communicated with each other form the sealing groove 4, so that a U-shaped communicating vessel structure is formed, and the main structure of the explosion-proof door main body 3 is convenient to use, and because the two annular grooves of the sealing groove 4 are the same in water level, the water level change of the sealing groove 4 can be observed, so that the corrosion is timely supplemented, and the non-related parts in the device are the same as in the prior art, or can be realized by the prior art;

in one embodiment, the horn cover 2 is welded at the port of the inner side of the wind shaft main body 1 in an inverted mode, and the horn cover 2 and the inner wall of the wind shaft main body 1 form an anti-backflow cavity, and the inverted horn cover 2 is welded on the inner wall of the wind shaft main body 1, so that air pressure can be floated and water absorbed in the air pressure can be collected, and liquid seal water in the sealing groove 4 is prevented from directly flowing backwards into the wind shaft main body 1.

In one embodiment, a plurality of cylinder seats 11 are welded on the outer surface of the explosion vent main body 3, a plurality of hydraulic cylinders 7 are installed on the bottom surface of the shearing plate 6 corresponding to the cylinder seats 11, and sufficient traction force can be provided for the explosion vent main body 3 through the plurality of hydraulic cylinders 7 so as to facilitate the opening of the explosion vent main body 3.

In one embodiment, the surface of the outer casing 8 is integrally formed with a plurality of cylindrical shells, and the plurality of cylindrical shells are respectively covered with a plurality of cylindrical seats 11 of the horn cover 2, so that the degree of fit with the overall contour of the vent body 3 can be increased by the plurality of cylindrical shells of the outer casing 8.

In one embodiment, the hydraulic cylinder 7 is communicated with an external hydraulic pump station through a pipeline, so that hydraulic oil is conveniently provided for the hydraulic cylinder 7, so that the hydraulic cylinder 7 stretches and contracts, and a hydraulic balancer is further arranged corresponding to the plurality of hydraulic cylinders 7 for synchronous stretching and contracting of the plurality of hydraulic cylinders 7, which is specifically known in the prior art and is not repeated.

In one embodiment, the top surface of the cylinder seat 11 is provided with a screw hole, and the connection of the explosion vent main body 3 and the hydraulic cylinder 7 is facilitated through the cylinder seat 11 and the screw hole.

Working principle:

during use, the plurality of hydraulic cylinders 7 on the shearing plate 6 are started to shrink, the piston rods of the plurality of hydraulic cylinders 7 are driven to pull the explosion-proof door main body 3 through the cylinder seat 11, the sealing ring 9 of the explosion-proof door main body 3 is driven to separate from liquid in the sealing groove 4, so that the explosion-proof door main body 3 is separated from a port of the air shaft main body 1, the opening of the explosion-proof door main body 3 is realized, so that natural ventilation of the air shaft main body 1 is realized, wherein a hydraulic pump station system of the hydraulic cylinders 7 supplies power through a power grid or a storage battery, double guarantee is provided, the outer covering shell 8 is covered on the periphery of the explosion-proof door main body 3, the outer covering shell 8 is driven to be prevented from being covered on the periphery of the cylinder seat 11 through a cylindrical structure formed by integral injection molding, then bolts penetrating through the bottom of the outer covering shell 8 and the cylinder seat 11, the outer covering shell 8 is connected with the explosion-proof door main body 3, compared with the structure of the traditional explosion-proof door main body 3 which is directly exposed and installed, the original explosion-proof door main body 3 can be used as a contact surface of the explosion-proof door main body 3 and the external environment, on the one side, the corrosion of the original explosion-proof door main body 3 is delayed, the two explosion-proof door main bodies 3 are provided with the same water level structure, the water level connector is formed by observing the two annular grooves 4, the water level connector is formed by the two annular grooves 4, the water level connector is convenient to be connected with each other, and the water level channel 4 is filled with the water-proof channel 4, and the water level channel 4 is formed, the water-proof well channel is sealed, and the water-sealing channel is sealed, and the cross-shaped channel is convenient, and the cross-shaped channel is sealed well channel 4 is the air-shaped channel 4 is sealed, and the air-sealed through the air-type has the air-sealed well channel 4 and the air tank 4 and the air-sealed through the air tank and the sealing well 4 and the air tank 4 is the seal well and the air tank 4 and the seal well tank through the seal well and the seal 4 and the seal well through the seal and the seal tank through the seal, the liquid seal water in the seal groove 4 is prevented from directly flowing backward to the inside of the wind well main body 1.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Main wind-force well explosion vent, including wind-force well main part (1), its characterized in that: the well head department of air shaft main part (1) is covered and is connected explosion vent main part (3), and explosion vent main part (3)'s periphery has been seted up seal groove (4), seal groove (4) are formed by the combination of two ring grooves of intercommunication each other, explosion vent main part (3) bottom surface edge welding has sealing ring (9), and in sealing ring (9) extends to one of them ring groove of seal groove (4), the surface welding of explosion vent main part (3) has drum seat (11), the periphery of explosion vent main part (3) has been covered and has been connected outer covering shell (8), and the periphery of outer covering shell (8) sets up a plurality of pillars (5), a plurality of the bottom of pillar (5) all welds mounting disc (10), and the surface of mounting disc (10) is through the peripheral fixed connection of bolt with air shaft main part (1), a plurality of the top welding of pillar (5) has shearing template (6), and the bottom of shearing template (6) is through bolt fastening pneumatic cylinder (7), the bottom of pneumatic cylinder (7) is through the main part and drum (3) explosion vent seat (11).

2. The main shaft explosion vent of claim 1, wherein: the horn cover (2) is welded at the port of the inner side of the wind shaft main body (1) in an inverted mode, and an anti-backflow cavity is formed between the horn cover (2) and the inner wall of the wind shaft main body (1).

3. The main shaft explosion vent of claim 1, wherein: the outer surface welding of explosion vent main part (3) has a plurality of cylinder seats (11), the bottom surface of cutting template (6) corresponds cylinder seat (11) and installs a plurality of pneumatic cylinders (7).

4. The main shaft explosion vent of claim 1, wherein: the surface of the outer covering shell (8) is integrally formed with a plurality of cylindrical shells, and the cylindrical shells are respectively covered with a plurality of cylindrical seats (11) of the horn cover (2).

5. The main shaft explosion vent of claim 1, wherein: the hydraulic cylinder (7) is communicated with an external hydraulic pump station through a pipeline.

6. The main shaft explosion vent of claim 1, wherein: screw holes are formed in the top surface of the cylinder seat (11).