Novel unpowered double-soft-curtain air locking valve

Abstract

The utility model provides a novel unpowered double-soft-curtain air locking valve, which can solve the technical problem that soft curtains cannot lock air when the material flow direction is the same as the air flow direction, and comprises a shell pipeline which is obliquely distributed, the upper end of the shell pipeline is a feed port, and the lower end of the shell pipeline is a discharge port; a first material blocking soft curtain assembly and a second material blocking soft curtain assembly are arranged on the upper side wall in a shell pipeline in the discharging direction, each of the first material blocking soft curtain assembly and the second material blocking soft curtain assembly comprises a soft curtain assembly and a balance weight assembly, and two sealing plates are welded in the shell. The sealing plate and the soft curtain assembly jointly seal an inner cavity of the shell pipeline. The two material blocking soft curtain assemblies are each provided with a balance weight assembly.

Description

Technical Field

[0001] The utility model relates to the field of cement production line equipment, in particular to an unpowered double-soft curtain air lock valve. Background Art

[0002] Soft curtain air lock valves are commonly used air lock devices and can be used in material conveying systems. Due to their compact structure, ease of use, smooth operation, no power, high reliability, and easy operation and maintenance, they are widely used in cement, chemical and other fields.

[0003] Soft curtain air lock valves are often used in material conveying systems where the material flow direction and airflow direction are opposite, and the material conveying flow rate is relatively small. When the material pressure is less than the airflow pressure, the airflow pressure makes the soft curtain close to the windshield surface, achieving the purpose of locking the wind. When the flowing material is intercepted by the soft curtain, it gradually accumulates in the shell pipe. When the material accumulates to a certain amount, the flowing material pressure is greater than the airflow pressure, the material-blocking soft curtain opens, and the material flows out, and this cycle repeats. However, in some material conveying between equipment, the material flow direction and the airflow direction may be the same. When the material flow direction and the airflow direction are the same, when the material pressure opens the soft curtain, the airflow is also discharged from it, making the commonly used soft curtain air lock valve unable to achieve the purpose of locking the wind. Utility Model Content

[0004] The utility model provides a novel non-powered double-soft curtain air-locking valve, which can solve the technical problem that the soft curtain cannot lock the air when the material flow direction is the same as the air flow direction.

[0005] The utility model is realized through the following technical solutions:

[0006] A novel unpowered double soft curtain air lock valve comprises an inclined shell pipe, wherein the upper end of the shell pipe is a feed port and the lower end is a discharge port;

[0007] The inner side wall of the shell pipe is provided with two sealing plates, each of which has a door-shaped opening; the upper side wall of the shell pipe is provided with a first material-blocking soft curtain assembly and a second material-blocking soft curtain assembly along the material discharge direction;

[0008] The first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly are respectively located on one side of the two sealing plates close to the material discharge opening and cover the opening;

[0009] The first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly are both provided with a counterweight assembly.

[0010] Furthermore, the first material-stopping soft curtain assembly and the second material-stopping soft curtain assembly both include soft curtains, and the upper ends of the soft curtains are fixed to the top of the sealing plate by bolt assemblies.

[0011] Furthermore, the counterweight assembly includes a counterweight support, one end of which is welded to the upper part of the soft curtain and the other end is fixed with a counterweight bolt, and at least one counterweight block is installed on the counterweight bolt. Under the action of the counterweight assembly, the soft curtain fits on the hole.

[0012] Furthermore, two inspection doors are provided on the outer side of the upper wall of the shell pipe, and the two inspection doors correspond one to one with the first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly.

[0013] Furthermore, the counterweight block is detachably fixed on the counterweight bolt.

[0014] Furthermore, the feed port and the discharge port are both provided with flange connection ports.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0016] 1. The non-powered double soft curtain air lock valve described in the utility model is used on material conveying equipment in which the material flow direction is the same as the air flow direction. A first material blocking soft curtain assembly and a second material blocking soft curtain assembly are provided on the upper side wall of the shell pipe along the material discharge direction. Under the action of the counterweight assembly, the soft curtain blocks the hole of the sealing plate. When the material passes through the first material blocking soft curtain assembly, the second material blocking soft curtain assembly is in an air locking state. When the material passes through the second material blocking soft curtain assembly, the first material blocking soft curtain assembly is in an air locking state, thereby ensuring the air locking effect of the soft curtain;

[0017] 2. The counterweight assembly includes a counterweight support, a counterweight block, and a counterweight bolt. There are multiple counterweight blocks assembled. By assembling different numbers of counterweight blocks, the soft curtain can resist the pressure of material flow and air flow, thereby achieving a wind-locking effect.

[0018] 3. The two inspection doors correspond to the first and second material-blocking soft curtain assemblies. The counterweight assembly can be adjusted and the soft curtain and other components can be inspected through the inspection doors, which is flexible to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the new type of unpowered double soft curtain air lock valve described in the utility model;

[0020] Figure 2 This is a schematic diagram of the sealing plate in the shell pipe;

[0021] Figure 3 This is a schematic diagram of the first-stage material-blocking soft curtain assembly;

[0022] Figure 4 This is a schematic diagram of the cooperation between the sealing plate and the soft curtain;

[0023] In the figure: 1. Shell pipe, 2. First material blocking soft curtain assembly, 21. Sealing plate, 22. Soft curtain, 3. Second material blocking soft curtain assembly, 4. Feed inlet, 5. Discharge port, 6. Counterweight assembly, 61. Counterweight support, 62. Counterweight bolt, 63. Counterweight block, 7. Inspection door. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] In the description of the utility model, it should be understood that the terms "front," "rear," "upper," "lower," "left," "right," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limiting the utility model. The utility model is further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1-4 As shown, this embodiment discloses a novel unpowered dual-soft curtain air lock valve, primarily suitable for conveying materials between two equipment with a height difference in cement production. The novel unpowered dual-soft curtain air lock valve disclosed in this embodiment primarily comprises a housing pipe 1, a first-stage material-blocking soft curtain assembly 2, and a second-stage material-blocking soft curtain assembly 3. To prevent material blockage, the housing pipe 1 is tilted, with a feed inlet 4 at the top and a discharge inlet 5 at the bottom. Both the feed inlet 4 and the discharge inlet 5 are equipped with flange connections for convenient connection and installation with the inlet and outlet ports of various equipment.

[0027] Two sealing plates 21 are welded to the inner side wall of the shell pipe. The sealing plates 21 are made of steel plates and have a door-shaped opening. The first and second material-stopping soft curtain assemblies 2 and 3 are arranged on the upper side wall of the shell pipe 1 along the direction of material discharge. The first and second material-stopping soft curtain assemblies 2 and 3 each include a soft curtain 22 and a counterweight assembly 6. The first and second material-stopping soft curtain assemblies are respectively located on one side of the two sealing plates 21 near the material discharge opening and cover the opening. The soft curtain 22 is made of wear-resistant belts, and the upper end of the soft curtain 22 is fixed to the top of the sealing plate 21 by a bolt assembly. The front and rear sides of the middle belt of the soft curtain 21 are fixed with steel plates to ensure the rigidity of the soft curtain. The soft curtain is tightly attached to the sealing plate 21, playing a sealing role, ensuring that the opening and closing of the soft curtain assembly does not interfere with the sealing plate. The sealing plate 21 and the soft curtain 22 jointly seal the inner cavity of the shell pipe 1. Both soft curtain assemblies are equipped with a counterweight assembly 6, which includes a counterweight support 61. One end of the counterweight support 61 is welded to the upper portion of the soft curtain 22, and the other end is mounted with a counterweight bolt 62. The counterweight bolt 62 is equipped with one to five counterweight blocks 63. The counterweight effect of the counterweight assembly 6 can be adjusted by varying the number of counterweight blocks 63. Under the action of the counterweight assembly, the soft curtain can fit relatively tightly against the sealing plate to seal the hole.

[0028] Two inspection doors 7 are machined on the outer side of the upper wall of the shell pipe 1, and the two inspection doors 7 correspond to the first stopper soft curtain assembly 2 and the second stopper soft curtain assembly 3. Through the inspection door, the counterweight assembly 6 can be adjusted and the sealing plate 21, soft curtain and other components can be inspected, which is flexible to operate.

[0029] The unpowered double soft curtain air lock valve described in this embodiment is applied to material conveying equipment where the material flow direction and the air flow direction are the same. The specific working process of the new unpowered double soft curtain air lock valve described in this embodiment is as follows:

[0030] The material enters the pipeline shell from the feed port 4, and the airflow direction is the same as the material flow direction. Under the action of the counterweight assembly 6, the soft curtain and the sealing plate 21 jointly counteract the gravity of the material and the suction of the airflow. The material is first intercepted by the soft curtain of the first material-blocking soft curtain assembly 2. As the material gradually accumulates, when the counterweight force is less than the material weight + the airflow suction force + the curtain's own weight, the curtain opens to open the soft curtain, and the material continues to move downward. At this time, the second material-blocking soft curtain assembly 3 is in a wind-locking state. After this part of the material passes through the first material-blocking soft curtain assembly 2, the first material-blocking soft curtain assembly 2 is in a wind-locking state again, and the material continues to fall and accumulates at the soft curtain of the second material-blocking assembly. When the counterweight force is less than the material weight + the airflow suction force + the curtain's own weight, the soft curtain opens, and the material falls to the discharge port. At this time, the first material-blocking soft curtain assembly 2 is in a wind-locking state, thereby ensuring the wind-locking effect of the soft curtain.

Claims

1. A new type of unpowered double soft curtain air lock valve, characterized by: It includes an inclined shell pipe, the upper end of the shell pipe is a feed port, and the lower end is a discharge port; The inner side wall of the shell pipe is provided with two sealing plates, each of which has a door-shaped opening; the upper side wall of the shell pipe is provided with a first material-blocking soft curtain assembly and a second material-blocking soft curtain assembly along the material discharge direction; The first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly are respectively located on one side of the two sealing plates close to the material discharge opening and cover the opening; The first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly are both provided with a counterweight assembly.

2. The new type of unpowered double soft curtain air lock valve according to claim 1 is characterized in that: The first material-stopping soft curtain assembly and the second material-stopping soft curtain assembly both include soft curtains, and the upper ends of the soft curtains are fixed to the top of the sealing plate through bolt assemblies.

3. The new type of unpowered double soft curtain air lock valve according to claim 2 is characterized in that: The counterweight assembly includes a counterweight support, one end of which is welded to the upper part of the soft curtain and the other end is fixed with a counterweight bolt, and at least one counterweight block is installed on the counterweight bolt. Under the action of the counterweight assembly, the soft curtain fits on the hole.

4. The new type of unpowered double soft curtain air lock valve according to claim 1 is characterized in that: Two inspection doors are provided on the outer side of the upper wall of the shell pipe, and the two inspection doors correspond one to one with the first material-blocking soft curtain assembly and the second material-blocking soft curtain assembly.

5. The new type of unpowered double soft curtain air lock valve according to claim 3 is characterized in that: The counterweight block is detachably fixed on the counterweight bolt.

6. The novel unpowered double soft curtain air lock valve according to any one of claims 1 to 5, characterized in that: The feed port and the discharge port are both provided with flange connection ports.

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