阅读说明：本技术 一种用于双膛竖窑的气料共用换向阀 (Gas-material shared reversing valve for double-chamber shaft kiln ) 是由 徐大鹏 刘淳 刘爽 于 2019-10-14 设计创作，主要内容包括：本发明涉及一种用于双膛竖窑的气料共用换向阀,包括阀体、双向阀机构及单向阀机构；阀体的顶部一侧设废气出口,靠近废气出口的阀体侧壁上设助燃空气入口；与助燃空气入口相对的阀体一侧设倾斜的下料口,阀体的底部设出料口；双向阀机构安装在靠近废气出口及助燃空气入口一侧,双向阀板能够将废气出口或助燃空气入口封闭；单向阀机构安装在靠近下料口一侧,能够将下料口封闭。本发明利用窑体的进料口,既可完成下料,也可完成双膛窑的气流换向,无需在耐火材料上开孔,从而降低了耐火材料砌筑的复杂程度,优化了耐火材料的整体受力状态,提高耐火材料的使用寿命,进而提高双膛竖窑的生产率。(The invention relates to a gas-material shared reversing valve for a double-chamber shaft kiln, which comprises a valve body, a two-way valve mechanism and a one-way valve mechanism, wherein the valve body is provided with a valve body hole; a waste gas outlet is formed in one side of the top of the valve body, and a combustion air inlet is formed in the side wall, close to the waste gas outlet, of the valve body; an inclined feed opening is formed in one side of the valve body opposite to the combustion air inlet, and a discharge opening is formed in the bottom of the valve body; the two-way valve mechanism is arranged at one side close to the waste gas outlet and the combustion air inlet, and the two-way valve plate can seal the waste gas outlet or the combustion air inlet; the check valve mechanism is installed on one side close to the feed opening and can seal the feed opening. The invention utilizes the feed inlet of the kiln body, can finish blanking and airflow reversing of the double-chamber kiln, and does not need to open holes on the refractory material, thereby reducing the complexity of building the refractory material, optimizing the integral stress state of the refractory material, prolonging the service life of the refractory material and further improving the productivity of the double-chamber vertical kiln.)

1. A gas-material shared reversing valve for a double-chamber shaft kiln is characterized by comprising a valve body, a two-way valve mechanism and a one-way valve mechanism; a waste gas outlet is arranged on one side of the top of the valve body and connected with an external waste gas pipeline, and a combustion air inlet is arranged on the side wall of the valve body close to the waste gas outlet and connected with an external combustion air pipeline; an inclined discharging opening is formed in one side of the valve body opposite to the combustion air inlet and is connected with an external discharging device, and a discharging opening is formed in the bottom of the valve body and is connected with the kiln chamber; the two-way valve mechanism is arranged at one side close to the waste gas outlet and the combustion air inlet, a two-way valve plate in the two-way valve mechanism is positioned in the valve body, the two-way valve plate is driven by the two-way valve driving device to switch among 2 working positions, the two-way valve plate can seal the waste gas outlet at one working position and seal the combustion air inlet at the other working position; the one-way valve mechanism is arranged on one side close to the feed opening, a one-way valve plate in the one-way valve mechanism is positioned in the valve body and is driven by the one-way valve driving device to switch among 2 working positions, the one-way valve plate can seal the feed opening in one working position, and the included angle between the one-way valve plate and the feed opening in the other working position is larger than 40 degrees; the valve body is provided with an air pressure balance connecting pipe.

2. The gas-material shared reversing valve for the double-bore shaft kiln as claimed in claim 1, wherein the angle between the axis of the feed opening and the horizontal plane is greater than 40 °.

3. The gas-material shared reversing valve for the double-chamber shaft kiln according to claim 1, wherein the two-way valve mechanism is composed of a two-way valve driving device and a two-way valve plate, wherein the two-way valve driving device is composed of a two-way valve oil cylinder, a two-way valve swing rod, a two-way valve shaft and a two-way valve swing arm, the fixed end of the two-way valve oil cylinder is fixedly connected with the valve body through an oil cylinder support I, the extending end of the two-way valve oil cylinder is connected with one end of the two-way valve swing rod, the other end of the two-way valve swing rod is connected with the two-way valve shaft through a key I, one end of the two-way valve; under the drive of the two-way valve oil cylinder, the two-way valve swing rod drives the two-way valve plate to rotate around the axis of the two-way valve shaft through the two-way valve shaft and the two-way valve swing arm.

4. The gas-material shared reversing valve for the double-chamber shaft kiln as claimed in claim 1 or 3, wherein a first sealing ring and a second sealing ring are respectively arranged on two sides of the bidirectional valve plate, a first sealing port and a second sealing port are respectively arranged in the valve body on the inner side of the waste gas outlet and the inner side of the combustion air inlet, and the first sealing ring and the second sealing ring are matched with the first sealing port and the second sealing port on the corresponding sides to realize the sealing of the corresponding ports on the valve body.

5. The gas-material shared reversing valve for the double-hearth shaft kiln as claimed in claim 4, wherein the first sealing port and the second sealing port are both made of heat-resistant stainless steel materials.

6. The gas-material shared reversing valve for the double-hearth shaft kiln as claimed in claim 1, wherein the check valve mechanism is composed of a check valve driving device and a check valve plate, wherein the check valve driving device is composed of a check valve oil cylinder, a check valve swing rod, a check valve shaft and a check valve swing arm, the fixed end of the check valve oil cylinder is fixedly connected with the valve body through an oil cylinder support II, the extending end of the check valve oil cylinder is connected with one end of the check valve swing rod, the other end of the check valve swing rod is connected with the check valve shaft through a key II, one end of the check valve swing arm is fixedly connected with the check valve shaft, and the other end of the check valve swing arm is connected with the check valve; under the drive of the one-way valve oil cylinder, the one-way valve swing rod drives the one-way valve plate to rotate around the axis of the one-way valve shaft through the one-way valve shaft and the one-way valve swing arm.

7. The gas-material shared reversing valve for the double-chamber shaft kiln as claimed in claim 1, wherein a blanking chute is arranged at the blanking port, and the blanking chute extends a distance into the valve body; a sealing ring seat is arranged on the outer side of the blanking chute of the extension section, a sealing ring III is arranged in the sealing ring seat, and the lower edge of the sealing ring III is higher than the lower edge of the blanking chute; a third sealing opening is formed in one side, facing the feeding opening, of the one-way valve plate, the third sealing opening is of a bowl-shaped structure, a bowl opening is made of stainless steel, and the inner diameter of the bowl opening is larger than the outer diameter of the feeding chute; the sealing of the feed opening is realized through the matching of the third sealing opening and the third sealing ring.

8. The gas-material shared reversing valve for the double-hearth shaft kiln as claimed in claim 7, wherein the angle between the axis of the blanking chute and the horizontal plane is 45 °.

9. The gas-material shared reversing valve for the double-bore shaft kiln as claimed in claim 1, wherein the center lines of the waste gas outlet and the combustion air inlet are perpendicular to each other, and the working strokes of the bidirectional valve plate and the one-way valve plate are both 90 degrees.

10. The gas-material shared reversing valve for the double-chamber shaft kiln as claimed in claim 1, wherein the air pressure balance connecting pipe is connected with the intermediate storage bin of the double-chamber shaft kiln through an air pressure balance pipeline, and the air pressure balance pipeline is provided with an electromagnetic valve.

Technical Field

The invention relates to the technical field of double-chamber shaft kilns, in particular to a gas-material shared reversing valve for a double-chamber shaft kiln.

Background

The double-hearth shaft kiln is an important thermal kiln, and is mainly used for calcining lime and dolomite. The kiln has the outstanding advantages that the heat consumption is lower than that of other kiln types, and the working mode is that two kiln chambers are communicated with each other and are heated alternately. When the working kiln chamber is heated, a large amount of generated hot flue gas flows into the preheating kiln chamber through the connecting channel to preheat materials in the preheating kiln chamber, and the steps are repeated in turn, so that the purpose of utilizing waste heat of the waste gas is achieved, and the use efficiency of fuel is improved.

The reversing between 2 kilns of the double-chamber shaft kiln is mainly accomplished by combustion air pipeline, waste gas pipeline and intermediate junction passageway. When connecting with combustion air pipeline and waste gas pipeline, it is generally necessary to open holes on the refractory material of the upper part of the shaft kiln. For a large-scale double-hearth shaft kiln, because the area of the opening hole is smaller than the total area, the large influence on the masonry of the refractory material can not be caused, and the influence on the whole stress of the refractory material masonry is not large. However, for a small-sized double-chamber shaft kiln, the open pore structure can greatly affect the masonry and the whole stress of the refractory material.

Disclosure of Invention

The invention provides a gas-material shared reversing valve for a double-hearth vertical kiln, which can complete blanking and airflow reversing of the double-hearth vertical kiln by utilizing a feed inlet of a kiln body without opening holes in refractory materials, thereby reducing the complexity of building the refractory materials, optimizing the integral stress state of the refractory materials, prolonging the service life of the refractory materials and further improving the production rate of the double-hearth vertical kiln.

In order to achieve the purpose, the invention adopts the following technical scheme:

a gas-material shared reversing valve for a double-chamber shaft kiln comprises a valve body, a two-way valve mechanism and a one-way valve mechanism; a waste gas outlet is arranged on one side of the top of the valve body and connected with an external waste gas pipeline, and a combustion air inlet is arranged on the side wall of the valve body close to the waste gas outlet and connected with an external combustion air pipeline; an inclined discharging opening is formed in one side of the valve body opposite to the combustion air inlet and is connected with an external discharging device, and a discharging opening is formed in the bottom of the valve body and is connected with the kiln chamber; the two-way valve mechanism is arranged at one side close to the waste gas outlet and the combustion air inlet, a two-way valve plate in the two-way valve mechanism is positioned in the valve body, the two-way valve plate is driven by the two-way valve driving device to switch among 2 working positions, the two-way valve plate can seal the waste gas outlet at one working position and seal the combustion air inlet at the other working position; the one-way valve mechanism is arranged on one side close to the feed opening, a one-way valve plate in the one-way valve mechanism is positioned in the valve body and is driven by the one-way valve driving device to switch among 2 working positions, the one-way valve plate can seal the feed opening in one working position, and the included angle between the one-way valve plate and the feed opening in the other working position is larger than 40 degrees; the valve body is provided with an air pressure balance connecting pipe.

The included angle between the axis of the feed opening and the horizontal plane is more than 40 degrees.

The bidirectional valve mechanism comprises a bidirectional valve driving device and a bidirectional valve plate, wherein the bidirectional valve driving device comprises a bidirectional valve oil cylinder, a bidirectional valve swing rod, a bidirectional valve shaft and a bidirectional valve swing arm; under the drive of the two-way valve oil cylinder, the two-way valve swing rod drives the two-way valve plate to rotate around the axis of the two-way valve shaft through the two-way valve shaft and the two-way valve swing arm.

The two sides of the bidirectional valve plate are respectively provided with a first sealing ring and a second sealing ring, a first sealing port and a second sealing port are respectively arranged in the valve body at the inner side of the waste gas outlet and the inner side of the combustion air inlet, and the first sealing ring and the second sealing ring are matched with the first sealing port and the second sealing port at the corresponding sides to seal the corresponding interfaces on the valve body.

The first sealing port and the second sealing port are both made of heat-resistant stainless steel.

The check valve mechanism consists of a check valve driving device and a check valve plate, wherein the check valve driving device consists of a check valve oil cylinder, a check valve swing rod, a check valve shaft and a check valve swing arm; under the drive of the one-way valve oil cylinder, the one-way valve swing rod drives the one-way valve plate to rotate around the axis of the one-way valve shaft through the one-way valve shaft and the one-way valve swing arm.

A discharging chute is arranged at the discharging opening and extends a certain distance into the valve body; a sealing ring seat is arranged on the outer side of the blanking chute of the extension section, a sealing ring III is arranged in the sealing ring seat, and the lower edge of the sealing ring III is higher than the lower edge of the blanking chute; a third sealing opening is formed in one side, facing the feeding opening, of the one-way valve plate, the third sealing opening is of a bowl-shaped structure, a bowl opening is made of stainless steel, and the inner diameter of the bowl opening is larger than the outer diameter of the feeding chute; the sealing of the feed opening is realized through the matching of the third sealing opening and the third sealing ring.

The included angle between the axis of the blanking chute and the horizontal plane is 45 degrees.

The center lines of the waste gas outlet and the combustion air inlet are mutually vertical, and the working strokes of the bidirectional valve plate and the one-way valve plate are both 90 degrees.

The air pressure balance connecting pipe is connected with the middle storage bin of the double-chamber shaft kiln through an air pressure balance pipeline, and the air pressure balance pipeline is provided with an electromagnetic valve.

Compared with the prior art, the invention has the beneficial effects that:

1) by adopting the gas-material shared reversing valve, the purpose of opening a hole at the refractory material at the upper part of the kiln chamber can be realized, so that the complexity of building the refractory material is reduced, the stress state of the refractory material building body at the position is optimized, and the service life of the refractory material is prolonged;

2) by adopting the gas-material shared reversing valve, the blanking operation can be carried out when the kiln chamber is pressurized, so that the operable time of charging of the shaft kiln is effectively prolonged;

3) by adopting the gas material sharing reversing valve, reversing and blanking can be completed simultaneously, so that the quantity and weight of required equipment are reduced, and the engineering investment cost is reduced;

4) the gas-material shared reversing valve has the characteristics of simple and compact structure, convenience in operation and the like, can reduce the occupied area of kiln top feeding and reversing equipment in a factory building, and improves the working environment of the kiln top;

5) the gas-material shared reversing valve has good sealing performance and no dust leakage in the operation process.

Drawings

Fig. 1 is a schematic view of the installation position of the gas-material shared reversing valve.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a front view of the gas-material shared directional control valve of the present invention.

Fig. 4 is an enlarged view of a portion B of fig. 3 (only one operation state is shown to avoid confusion of the drawing).

Fig. 5 is a view a-a in fig. 3.

In the figure: 1. combustion-supporting air inlet 2, two-way valve swing rod 3, integral bearing seat 4, two-way valve oil cylinder 5, waste gas outlet 6, access door I7, oil cylinder support I8, feed opening 9, one-way valve shaft 10, one-way valve swing rod 11, one-way valve oil cylinder 12, valve body 13, oil cylinder support II 14, discharge opening 15, seal opening I16, seal ring I17, seal ring II 18, seal opening II 19, air pressure balance connecting pipe 20, one-way valve swing arm 21, one-way valve plate 22, feed chute 23, seal ring III 24, seal ring seat 25, access door II 26, two-way valve shaft 27, two-way valve swing arm 28, two-way valve plate swing arm 28

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1-5, the gas-material shared reversing valve for a double-bore shaft kiln of the invention comprises a valve body 12, a two-way valve mechanism and a one-way valve mechanism; a waste gas outlet 5 is arranged on one side of the top of the valve body 12 and connected with an external waste gas pipeline, and a combustion air inlet 1 is arranged on the side wall of the valve body 12 close to the waste gas outlet 5 and connected with the external combustion air pipeline; one side of the valve body 12 opposite to the combustion air inlet 1 is provided with an inclined blanking port 8 which is connected with an external blanking device, and the bottom of the valve body 12 is provided with a discharging port 14 which is connected with a kiln chamber; the two-way valve mechanism is arranged at one side close to the waste gas outlet 5 and the combustion air inlet 1, a two-way valve plate 28 in the two-way valve mechanism is positioned in the valve body 12, the two-way valve plate 28 is driven by a two-way valve driving device to be switched among 2 working positions, the two-way valve plate 28 can seal and seal the waste gas outlet 5 at one working position, and can seal and seal the combustion air inlet 1 at the other working position; the check valve mechanism is arranged on one side close to the feed opening 14, a check valve plate 21 in the check valve mechanism is positioned in the valve body 12, the check valve plate 21 is driven by the check valve driving device to be switched among 2 working positions, the check valve plate 21 can seal and seal the feed opening 8 in one of the working positions, and the included angle between the check valve plate 21 and the feed opening 8 in the other working position is larger than 40 degrees; the valve body 12 is provided with an air pressure balance connecting pipe 19.

The included angle between the axis of the feed opening 8 and the horizontal plane is more than 40 degrees.

As shown in fig. 2, 3 and 5, the two-way valve mechanism is composed of a two-way valve driving device and a two-way valve plate 28, wherein the two-way valve driving device is composed of a two-way valve cylinder 4, a two-way valve swing rod 2, a two-way valve shaft 26 and a two-way valve swing arm 27, the fixed end of the two-way valve cylinder 4 is fixedly connected with the valve body 12 through a cylinder support seat one 7, the extending end of the two-way valve cylinder 4 is connected with one end of the two-way valve swing rod 2, the other end of the two-way valve swing rod 2 is connected with the two-way valve shaft 26 through a key, one end of the two-way valve swing arm; under the drive of the two-way valve cylinder 4, the two-way valve swing rod 2 drives the two-way valve plate 28 to rotate around the axis of the two-way valve shaft 4 through the two-way valve shaft 26 and the two-way valve swing arm 27.

The two sides of the bidirectional valve plate 28 are respectively provided with a first sealing ring 16 and a second sealing ring 17, a first sealing port 15 and a second sealing port 18 are respectively arranged in the valve body 12 at the inner side of the waste gas outlet 5 and the inner side of the combustion air inlet 1, and the first sealing ring 16 and the second sealing ring 17 are matched with the first sealing port 15 and the second sealing port 18 at the corresponding sides to realize the sealing of the corresponding interfaces on the valve body 12.

The first sealing port 15 and the second sealing port 18 are both made of heat-resistant stainless steel.

As shown in fig. 3 and 4, the check valve mechanism is composed of a check valve driving device and a check valve plate 21, wherein the check valve driving device is composed of a check valve cylinder 11, a check valve swing rod 10, a check valve shaft 9 and a check valve swing arm 20, the fixed end of the check valve cylinder 11 is fixedly connected with the valve body 12 through a cylinder support II 13, the extending end of the check valve cylinder 11 is connected with one end of the check valve swing rod 10, the other end of the check valve swing rod 10 is connected with the check valve shaft 9 through a key II, one end of the check valve swing arm 20 is fixedly connected with the check valve shaft 9, and the other end is connected with the check valve plate 21; under the drive of the one-way valve oil cylinder 11, the one-way valve swing rod 10 drives the one-way valve plate 21 to rotate around the axis of the one-way valve shaft 9 through the one-way valve shaft 9 and the one-way valve swing arm 20.

A blanking chute 22 is arranged at the blanking port 8, and the blanking chute 22 extends a certain distance into the valve body 12; a sealing ring seat 24 is arranged on the outer side of the blanking chute 22 of the extension section, a sealing ring III 23 is arranged in the sealing ring seat 24, and the lower edge of the sealing ring III 23 is higher than the lower edge of the blanking chute 22; a third sealing opening is formed in one side, facing the feeding opening 8, of the one-way valve plate 21, the third sealing opening is of a bowl-shaped structure, a bowl opening is made of stainless steel materials, and the inner diameter of the bowl opening is larger than the outer diameter of the feeding chute 22; the third sealing opening is matched with the third sealing ring 23 to realize the sealing of the feed opening 8.

The included angle between the axis of the blanking chute 22 and the horizontal plane is 45 degrees.

The central lines of the waste gas outlet 5 and the combustion air inlet 1 are perpendicular to each other, and the working strokes of the bidirectional valve plate 28 and the one-way valve plate 21 are both 90 degrees.

The air pressure balance connecting pipe 19 is connected with the middle storage bin of the double-chamber shaft kiln through an air pressure balance pipeline, and an electromagnetic valve is arranged on the air pressure balance pipeline.

The valve body 12 of the gas-material shared reversing valve for the double-chamber shaft kiln is provided with 4 interfaces which are respectively a combustion-supporting air inlet 1, a waste gas outlet 5, a discharging opening 8 and a discharging opening 14.

According to the requirements of thermal technology, the first action to be realized by the gas-material shared reversing valve is as follows: the combustion-supporting air inlet 1 of the gas-material shared reversing valve on the heating kiln chamber is opened, the waste gas outlet 5 is closed, air is introduced, enters the kiln chamber from the discharge port 14 and flows downwards, transversely enters the preheating kiln chamber through a connecting channel among 2 kiln chambers and flows upwards, the air is introduced into the corresponding valve body 12 through the discharge port 14 of the gas-material shared reversing valve on the preheating kiln chamber, the waste gas outlet 5 of the gas-material shared reversing valve on the preheating kiln chamber is opened, the combustion-supporting air inlet 1 is closed, and the waste gas after heat exchange flows to a dust remover and a chimney from the corresponding waste gas outlet 5.

The present invention specifically realizes the above-described operation by:

a two-way valve mechanism: the first oil cylinder support 7 is welded on the valve body 12, the fixed end of the two-way valve oil cylinder 4 is connected with the oil cylinder support 7, and the extending end of the two-way valve oil cylinder is connected with the two-way valve swing rod 2. The two-way valve swing rod 2 is connected with the two-way valve shaft 25 through a key I. A two-way valve swing arm 26 is welded on the two-way valve shaft 25, and the two-way valve swing arm 26 is fixedly connected with a two-way valve plate 27. When the combustion air inlet 1 needs to be closed, the two-way valve oil cylinder 4 extends out to drive the two-way valve swing rod 2 and the two-way valve shaft 25 to act, so that the two-way valve plate 28 swings downwards. The sealing effect is formed by the contact of a sealing ring I16 on the corresponding side of the bidirectional valve plate and a sealing port I15 at the combustion air inlet 1. In order to stabilize the sealing effect for a long time, the first sealing port 15 and the second sealing port 18 are made of heat-resistant stainless steel materials. When the waste gas outlet 5 needs to be closed, the two-way valve oil cylinder 4 retracts to drive the two-way valve swing rod 2 and the two-way valve shaft 25 to move, so that the two-way valve plate 28 swings upwards, and the sealing ring II 17 on the corresponding side of the two-way valve plate 28 is in contact with the sealing port II 18 at the waste gas outlet 5 to form a sealing effect. The stroke (oscillation angle) of bidirectional valve plate 28 is preferably 90 °. And a first access door is arranged on the valve body close to the two-way valve mechanism.

According to the requirements of thermal technology, the second action to be realized by the gas-material shared reversing valve is as follows: the feed opening 8 is opened, and the material slides down through the valve body 12 and enters the corresponding kiln chamber through the discharge opening 14. The design difficulty is that the feed opening 8 can only be opened laterally on the valve body 12, because the gas and material passing interfaces are the feed opening 14, and the feed opening 14 needs to be butted with the top opening of the kiln chamber, so the feed opening 14 must be arranged at the bottom of the reversing valve, and the axis is vertical. The two-way valve mechanism for completing the air flow reversing needs to be provided with a rotary two-way valve plate 28, so that 2 interfaces of the waste gas outlet 5 and the combustion air inlet 1 must be arranged adjacently and limited by the rotation angle of the two-way valve plate 28, the 2 interfaces adopt a form of opening from one side to the other and opening from the top, and finally the feed opening 8 only can be opened from the side. In order not to accumulate, the inclination angle of the feed opening 8 needs to be larger than 40 °. When the double-chamber shaft kiln works, the working air flow can be formed only by good sealing effect, so that the working air flow is also sealed in a sealing ring pressing mode. Partial tailings are easily accumulated in the inclined feed opening 8, and effective sealing is difficult to realize by directly pressing the feed opening 8 with a sealing ring. The invention realizes the actions and achieves the expected sealing effect through the following modes:

a one-way valve mechanism: the second oil cylinder support 13 is welded on the valve body 12, the fixed end of the one-way valve oil cylinder 11 is connected with the second oil cylinder support 13, and the extending end is connected with the one-way valve swing rod 10. The one-way valve swing rod 10 is connected with the one-way valve shaft 9 through a second key. A one-way valve swing arm 20 is welded on the one-way valve shaft 9, and the one-way valve swing arm 20 is fixedly connected with a one-way valve plate 21. When blanking is needed, the one-way valve oil cylinder 11 extends out to drive the one-way valve swing rod 10 and the one-way valve shaft 9 to move, so that the one-way valve plate 21 swings towards the inner side of the valve body 12, and the action of opening the blanking port 8 is realized. When the blanking port 8 needs to be closed, the one-way valve oil cylinder 11 retracts to drive the one-way valve swing rod 10 and the one-way valve shaft 9 to move, so that the one-way valve plate 21 swings towards the outer side of the valve body 12, and the valve port of the one-way valve plate 21 is contacted with the sealing ring III 23 on the sealing ring seat 24 of the blanking chute 22 to realize sealing closing. The angle between the blanking chute 22 and the horizontal plane is 45 degrees, so that the material accumulation in the blanking chute 22 is avoided. The working stroke (swing angle) of the check valve plate 21 is preferably 90 degrees, and accumulated materials are accumulated in a valve port of the check valve plate 21 and can be removed after rotation. The blanking chute 22 is only used for chute and does not play a sealing role. And a sealing ring seat 24 is welded on the outer side of the blanking chute 22, a sealing ring III 23 is arranged on the sealing ring seat 24, and the lower edge of the sealing ring III 23 is higher than the lower edge of the blanking chute 22 by a certain distance so as to avoid the influence of materials on the sealing of the sealing ring III 23, the damage to the sealing effect or the abrasion of the sealing ring III 23. The extension section of cooperation unloading elephant trunk 22, one-way valve plate 21 make bowl form structure, and the bowl mouth adopts stainless steel to long-term stable sealed. The inner diameter of the bowl opening is larger than the outer diameter of the blanking chute 22, and the bowl opening and the sealing ring III 23 arranged in the sealing ring seat 24 realize sealing together. And a second access door 25 is arranged on the valve body close to the one-way valve mechanism.

Because the gas and material shared reversing valve simultaneously releases gas, when the kiln chamber is heated for charging, the gas and material shared reversing valve is internally provided with positive pressure, and when the kiln chamber is heated for charging, the gas and material shared reversing valve is internally provided with negative pressure, so that the normal opening of the one-way valve plate is not influenced by the pressure change. The valve body 12 is provided with an air pressure balance connecting pipe 19, the air pressure balance connecting pipe 19 is connected with the middle storage bin of the double-chamber shaft kiln through an air pressure balance pipeline, and the air pressure balance pipeline is provided with an electromagnetic valve. When the one-way valve plate needs to be opened, the electromagnetic valve is opened first to balance the air pressure on the two sides.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.