Material conveying air volume control valve for cement kiln

Abstract

The utility model discloses a material conveying air volume control valve for a cement kiln, which belongs to the technical field of hot air control valves, and comprises a valve body, the valve body comprises a mounting shell, and the end part of the mounting shell is respectively communicated with a fan and a chute extension set; the valve element comprises a limiting sealing piece, the limiting sealing piece comprises a positioning sealing plate, the positioning sealing plate is installed on the inner wall of the installation shell in a sealed mode, matched sealing plates are arranged on the two sides of the positioning sealing plate in a sealed and sliding fit mode, a bottom plate is fixedly connected to the bottoms of the matched sealing plates, the bottom plate corresponds to the draught fan, and the draught fan is started to drive the bottom plate to move upwards. The bottom plate moves upwards to enable the matched sealing plate to move upwards, at the moment, a space exists between the bottom plate and the positioning sealing plate to facilitate gas rising, meanwhile, a space exists between the positioning sealing plate and the matched sealing plate to facilitate gas discharging, and when the bottom of the bottom plate is unpowered, the matched sealing plate can rapidly fall to be attached to the positioning sealing plate to prevent materials from falling.

Description

Technical Field

[0001] The utility model relates to the field of hot air control valves, and more specifically, to a material conveying air volume control valve for a cement kiln. Background Art

[0002] In the process of clinker production in a cement kiln, the preheater chute classifier is an important part of the preheater system. It is responsible for transporting raw meal powder from the elevator to the first stage cylinder and ensuring smooth transportation during the conveying process.

[0003] When conveying raw materials such as raw meal, the wind generated by the fan is the main driving force for pushing the materials to flow in the chute. When transporting the materials in the chute through the fan, the fan starts and drives the materials in the chute to move through the wind. During the transportation process, if it is necessary to stop, the materials in the chute will fall without power support. If the air damper, valve, etc. are not closed in time, some materials will fall into the fan, affecting the service life of the fan. It is not convenient to seal itself when the fan stops operating to prevent the materials above from falling. How to invent a material conveying air volume control valve for a cement kiln to improve these problems has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a material conveying air volume control valve for a cement kiln, aiming to improve the problem that the materials in the chute will fall into the fan without power support during the material transportation process, affecting the service life of the fan.

[0005] The utility model is realized as follows: A material conveying air volume control valve for a cement kiln includes

[0006] a valve body, the valve body includes an installation housing, and the ends of the installation housing are respectively communicated with a fan and a chute classifier;

[0007] a valve core, the valve core includes a limit seal, the limit seal includes a positioning seal plate, the positioning seal plate is sealingly installed on the inner wall of the installation housing, and two sides of the positioning seal plate are sealingly and slidably attached with mating seal plates, the bottom of the mating seal plate is fixedly connected with a bottom plate, and the bottom plate is correspondingly arranged with the fan.

[0008] In a preferred technical solution of the utility model, the installation housing includes a sealing column, the middle of the sealing column is hollow, both ends of the sealing column are respectively fixedly connected with installation ring plates, the middle of the installation ring plates is evenly provided with bolt holes at equal intervals, and the installation ring plates are respectively installed between the fan and the chute classifier through bolts.

[0009] In a preferred technical solution of the utility model, a limit ring is fixedly connected between the mounting ring plate and the sealing column, a sealing ring is clamped on the upper limit of the limit ring, and the sealing ring is respectively in sealing contact with the fan and the chute branch.

[0010] In a preferred technical solution of the utility model, the outer wall of the positioning sealing plate is provided with threads, the inner wall of the sealing column is provided with threads matching the positioning sealing plate, and the positioning sealing plate thread seal is installed inside the sealing column.

[0011] In a preferred technical solution of the present invention, the middle part of the positioning sealing plate is hollow, and a matching sealing rod is provided in the middle part of the positioning sealing plate. The two ends of the matching sealing rod are respectively fixedly connected to the inner wall of the positioning sealing plate, and the interior of the positioning sealing plate is provided with column plates on both sides of the matching sealing rod for limited sliding. The tops of the column plates are respectively fixedly connected to the matching sealing plates, and the bottoms of the column plates are fixedly connected to base plates, which are located inside the sealing column.

[0012] In a preferred technical solution of the present utility model, the upper and lower outer edges of the bottom plate are both arc-shaped, and a twisting paddle is fixedly connected to the bottom of the bottom plate.

[0013] In a preferred technical solution of the utility model, the column plate is U-shaped, the two ends of the column plate slide through the positioning sealing plate and the inner side of the matching sealing plate and are fixedly connected, and the bottom of the column plate is fixedly installed on the top of the base plate.

[0014] In a preferred technical solution of the present invention, the inner edge of the positioning sealing plate and the edges on both sides of the top of the matching sealing rod are inclined, and the bottom outer edge of the matching sealing plate is respectively fitted with the inclined parts of the positioning sealing plate and the matching sealing rod.

[0015] In a preferred technical solution of the utility model, springs are sleeved on both sides of the column plate, and two ends of the springs are respectively in contact with the bottom of the positioning sealing plate and the top of the bottom plate.

[0016] In a preferred technical solution of the utility model, a threaded rod is screwed through the middle of the bottom plate, a handle is fixedly connected to the end of the threaded rod, and the top of the threaded rod is correspondingly arranged with the matching sealing rod.

[0017] The beneficial effects of the present utility model are as follows: A material conveying air volume control valve for a cement kiln obtained by the above design of the present utility model, when in use, rotates the bottom plate by screwing the screwing piece. The bottom plate cooperates with the column plate and the cooperating sealing rod to drive the positioning sealing plate to rotate in the sealing column, so that the positioning sealing plate is installed in the sealing column. At the same time, screw the handle in advance to adjust the extended length of the threaded rod, which is convenient for adjusting the distance between the bottom plate and the positioning sealing plate, preventing the excessive pressure on the bottom plate caused by the large wind force when the fan starts, severely compressing the spring and reducing the space for air to pass through the column plate. If the distance between the bottom plate and the positioning sealing plate is too small, it will affect the air flow and easily cause damage to the fan. When the fan stops blowing, the cooperating sealing plate quickly drops under the gravity of the column plate, the bottom plate, and the screwing piece. At the same time, when there is no thrust at the bottom of the bottom plate, the spring will quickly drive the bottom plate to move downward, facilitating the quick drop of the cooperating sealing plate to avoid the upper material from falling into the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a top view structural schematic diagram provided by an embodiment of the present utility model;

[0020] Figure 2 is a right view structural schematic diagram provided by an embodiment of the present utility model;

[0021] Figure 3 is a structural schematic diagram of the interior of the installation housing provided by an embodiment of the present utility model;

[0022] Figure 4 is a structural schematic diagram of the limit seal provided by an embodiment of the present utility model.

[0023] In the figure: 100 - valve body; 110 - installation housing; 111 - sealing column; 112 - installation ring plate; 113 - sealing ring; 114 - limit ring; 200 - valve core; 210 - limit seal; 211 - positioning seal plate; 212 - cooperating seal rod; 213 - bottom plate; 214 - column plate; 215 - cooperating seal plate; 216 - screwing piece; 217 - spring; 218 - handle; 219 - threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 and Figure 2 The present utility model provides a technical solution: a material conveying air volume control valve for a cement kiln, comprising

[0026] a valve body 100, the valve body 100 includes an installation housing 110, and the ends of the installation housing 110 are respectively connected to a fan and a chute separator in communication; a valve core 200, the valve core 200 includes a limit seal 210, the limit seal 210 includes a positioning seal plate 211, the positioning seal plate 211 is sealingly installed on the inner wall of the installation housing 110, and two sides of the positioning seal plate 211 are sealingly and slidably attached with a mating seal plate 215. A bottom plate 213 is fixedly connected to the bottom of the mating seal plate 215, and the bottom plate 213 is arranged corresponding to the fan. When the fan starts, it drives the bottom plate 213 to move upward. When the bottom plate 213 moves upward, the mating seal plate 215 moves upward. At this time, there is a space between the bottom plate 213 and the positioning seal plate 211 for the gas to rise, and at the same time, there is a space between the positioning seal plate 211 and the mating seal plate 215 for the gas to be discharged. When there is no power at the bottom of the bottom plate 213, the mating seal plate 215 will quickly fall and fit with the positioning seal plate 211 to prevent the material from falling.

[0027] Please refer to Figure 2 and Figure 3 The installation housing 110 includes a sealing column 111, the middle of the sealing column 111 is hollow, and both ends of the sealing column 111 are respectively fixedly connected with installation ring plates 112. Bolt holes are evenly opened in the middle of the installation ring plates 112, and the installation ring plates 112 are respectively installed between the fan and the chute separator through bolts. A limit ring 114 is fixedly connected between the installation ring plate 112 and the sealing column 111, and a sealing ring 113 is clamped on the limit ring 114. The sealing ring 113 is in sealing contact with the fan and the chute separator respectively, and the sealing ring 113 is used to increase the sealing performance.

[0028] Please refer to Figure 3 and Figure 4The outer wall of the positioning sealing plate 211 is provided with threads, and the inner wall of the sealing column 111 is provided with threads matching the positioning sealing plate 211. The threaded sealing installation of the positioning sealing plate 211 is inside the sealing column 111, which is convenient for quickly installing and removing the positioning sealing plate 211. The middle part of the positioning sealing plate 211 is hollow, and the middle part of the positioning sealing plate 211 is provided with a matching sealing rod 212. The two ends of the matching sealing rod 212 are respectively fixedly connected to the inner wall of the positioning sealing plate 211. The interior of the positioning sealing plate 211 is located on both sides of the matching sealing rod 212 and is respectively provided with column plates 214 for limited sliding. The top of the column plate 214 is respectively fixedly connected to the matching sealing plate 215. The bottom of the column plate 214 is fixedly connected with the bottom plate 213. The bottom plate 213 is located inside the sealing column 111, which is convenient for gas to pass through the positioning sealing plate 211 and enter the inclined groove.

[0029] The upper and lower outer edges of the bottom plate 213 are both arc-shaped, and a screwing paddle 216 is fixedly connected to the bottom of the bottom plate 213 for easy screwing. The column plate 214 is U-shaped, and the two ends of the column plate 214 slide through the inner side of the positioning sealing plate 211 and the matching sealing plate 215 for fixed connection. The bottom of the column plate 214 is fixedly installed on the top of the bottom plate 213, and the matching sealing rod 212 is located inside the U-shaped column plate 214, so that the column plate 214 is vertically displaced, which facilitates the gas to be discharged through both sides of the column plate 214.

[0030] The inner edge of the positioning sealing plate 211 and the edges on both sides of the top of the matching sealing rod 212 are inclined, and the outer edge of the bottom of the matching sealing plate 215 is respectively in contact with the inclined parts of the positioning sealing plate 211 and the matching sealing rod 212 to prevent materials from falling into the fan. Springs 217 are sleeved on both sides of the column plate 214, and the two ends of the spring 217 are respectively in contact with the bottom of the positioning sealing plate 211 and the top of the bottom plate 213. The spring 217 is used to assist and facilitate the rapid fall of the matching sealing plate 215.

[0031] A threaded rod 219 is screwed through the middle of the bottom plate 213, and a handle 218 is fixedly connected to the end of the threaded rod 219. The top of the threaded rod 219 is correspondingly arranged to the matching sealing rod 212. The rising distance of the bottom plate 213 is adjusted by screwing the threaded rod 219 to avoid the bottom plate 213 rising too far and tilting the gas discharge.

[0032] Working principle: Place the positioning seal plate 211 inside the seal column 111. Rotate the bottom plate 213 by turning the turning piece 216. The bottom plate 213 cooperates with the column plate 214 and the cooperating seal rod 212 to drive the positioning seal plate 211 to rotate inside the seal column 111, so that the positioning seal plate 211 is installed inside the seal column 111. At the same time, turn the handle 218 in advance to adjust the extended length of the threaded rod 219, which is convenient for adjusting the distance between the bottom plate 213 and the positioning seal plate 211, preventing the excessive pressure on the bottom plate 213 caused by the strong wind when the fan starts, severely compressing the spring 217 and reducing the space for air to pass through the column plate 214. If the distance between the bottom plate 213 and the positioning seal plate 211 is too small, it will affect the air flow and easily cause damage to the fan. When the fan stops blowing, the cooperating seal plate 215 quickly drops due to the gravity of the column plate 214, the bottom plate 213, and the turning piece 216. At the same time, when there is no thrust at the bottom of the bottom plate 213, the spring 217 will quickly drive the bottom plate 213 to move downward, facilitating the quick drop of the cooperating seal plate 215 and preventing the upper material from falling into the fan.

[0033] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A material conveying air volume control valve for a cement kiln, characterized in that, include A valve body, the valve body comprising a mounting shell, the ends of the mounting shell being respectively connected to the ventilator and the chute branch; The valve core includes a limit seal, and the limit seal includes a positioning sealing plate. The positioning sealing plate is sealingly installed on the inner wall of the mounting shell, and matching sealing plates are sealingly and slidingly fitted on both sides of the positioning sealing plate. The bottom of the matching sealing plate is fixedly connected with a bottom plate, and the bottom plate is arranged corresponding to the fan.

2. The material conveying air volume control valve for a cement kiln according to claim 1, characterized in that: The mounting shell includes a sealing column, the middle part of which is hollow, and both ends of the sealing column are respectively fixedly connected with mounting ring plates, the middle part of the mounting ring plate is evenly divided with bolt holes, and the mounting ring plate is respectively installed between the fan and the chute extension by bolts.

3. The material conveying air volume control valve for a cement kiln according to claim 2, characterized in that: A limit ring is fixedly connected between the mounting ring plate and the sealing column, and a sealing ring is clamped on the upper limit of the limit ring. The sealing ring is respectively in sealing contact with the fan and the chute branch.

4. The material conveying air volume control valve for a cement kiln according to claim 2, characterized in that: The outer wall of the positioning sealing plate is provided with threads, the inner wall of the sealing column is provided with threads matching with the positioning sealing plate, and the positioning sealing plate thread seal is installed inside the sealing column.

5. The material conveying air volume control valve for a cement kiln according to claim 4, characterized in that: The middle part of the positioning sealing plate is hollow, and a matching sealing rod is provided in the middle part of the positioning sealing plate. The two ends of the matching sealing rod are respectively fixedly connected to the inner wall of the positioning sealing plate, and the interior of the positioning sealing plate is provided with column plates on both sides of the matching sealing rod for limited sliding. The tops of the column plates are respectively fixedly connected to the matching sealing plates, and the bottoms of the column plates are fixedly connected to base plates, which are located inside the sealing column.

6. The air volume control valve for material conveying used in a cement kiln according to claim 5, characterized in that: The upper and lower outer edges of the bottom plate are both arranged in an arc shape, and a screwing paddle is fixedly connected to the bottom of the bottom plate.

7. The material conveying air volume control valve for a cement kiln according to claim 5, characterized in that: The column plate is U-shaped, and both ends of the column plate slide through the positioning sealing plate and the inner side of the matching sealing plate to be fixedly connected, and the bottom of the column plate is fixedly installed on the top of the base plate.

8. The material conveying air volume control valve for a cement kiln according to claim 5, characterized in that: The inner edge of the positioning sealing plate and the edges on both sides of the top of the matching sealing rod are inclined, and the bottom outer edge of the matching sealing plate is respectively fitted with the inclined parts of the positioning sealing plate and the matching sealing rod.

9. The material conveying air volume control valve for a cement kiln according to claim 7, characterized in that: Springs are sleeved on both sides of the column plate, and two ends of the springs are respectively in contact with the bottom of the positioning sealing plate and the top of the bottom plate.

10. The material conveying air volume control valve for a cement kiln according to claim 7, characterized in that: A threaded rod is screwed through the middle of the bottom plate, a handle is fixedly connected to the end of the threaded rod, and the top of the threaded rod is correspondingly arranged with the matching sealing rod.

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