Double-curtain type locking and sealing valve
By using a double-curtain locking valve design, alternating sealing curtains and hot air chambers are employed to solve the problems of incomplete airlock and material caking, thus achieving more efficient airlock and material conveying.
Patent Information
- Application Number
- CN202520071143.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing soft curtain airlock valve does not lock the air tightly during use, allowing hot air to easily leak out from the gaps, and sticky and wet materials tend to stick to the walls of the chute, causing blockage and affecting production progress.
The double-curtain locking valve design includes a first sealing curtain and a second sealing curtain. By alternating airlocking and combining the hot air chamber with circulating hot air, it prevents materials from sticking to the walls of the chute and achieves sealing by its own weight, forming an S-shaped unloading channel and improving the airlocking effect.
It improves the airlock effect, reduces hot air leakage and material caking, increases material flow efficiency, reduces maintenance frequency, and ensures production continuity.
Smart Images
Figure CN223673644U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cement production line equipment field, concretely relates to a double curtain formula lock seal valve. BACKGROUND
[0002] The soft curtain air lock valve is commonly used air lock equipment, and can be used in the material conveying system.
[0003] The soft curtain air lock valve is commonly used in the material conveying system with opposite material flow direction and airflow direction, and the conveying flow of the material is relatively small. SUMMARY
[0004] The utility model provides a double curtain formula lock seal valve, solves the problem of not strict air lock and material walling on the chute, the first sealing curtain and second sealing curtain can alternately lock air, guarantee the air lock effect, and the hot air cavity passes into circulating hot air to avoid the sticky material walling on the chute.
[0005] The utility model is realized through the following technical schemes:
[0006] A double curtain formula lock seal valve, including the casing, the upper end of casing is provided with the feed inlet, and the lower end is provided with the discharge port, the right side wall in the casing is provided with the first chute that extends to the left and is inclined downward, the left side wall in the casing is provided with the second chute that extends to the right and is inclined downward;
[0007] The second chute is located below the first chute, and the first chute and the second chute form an S-shaped discharge channel in space.
[0008] The top of the casing is provided with the first sealing curtain, and the bottom end of the first sealing curtain extends to the tail end of the first chute, the bottom of the second chute is provided with the second sealing curtain, and the bottom end of the second sealing curtain extends to the tail end of the second chute.
[0009] The side wall of the first sealing curtain, the second sealing curtain, the second chute and the shell forms a sealed area opposite to the feeding port and the discharging port;
[0010] The back of the first chute and the second chute is provided with a hot air cavity.
[0011] Further, the first sealing curtain and the second sealing curtain are provided with a counterweight assembly on the side away from the material flow.
[0012] Further, the first sealing curtain and the second sealing curtain each include a heat-resistant rubber layer, and the two sides of the heat-resistant rubber layer are provided with a plurality of heat-resistant steel plates which are spaced and fixed by bolts;
[0013] The counterweight assembly includes a support frame fixed on one of the heat-resistant steel plates, a pin shaft is installed on the support frame, a plurality of counterweight pieces are sleeved on the pin shaft, and a locking nut is installed on the top end of the pin shaft.
[0014] Further, the feeding port is located at the upper right side of the shell, and the discharging port is located at the lower right side of the shell.
[0015] Further, the front and rear side walls of the hot air cavity are respectively provided with an air inlet pipe opening and an air outlet pipe opening.
[0016] The feeding port and the discharging port are provided with a connecting flange.
[0017] The beneficial effects achieved by the utility model compared with the prior art are as follows:
[0018] 1. The shell is provided with a first sealing curtain, a second sealing curtain, a first chute and a second chute, the side wall of the first sealing curtain, the second sealing curtain, the second chute and the shell forms a sealed area opposite to the feeding port and the discharging port; the first sealing curtain and the second sealing curtain are sealed by gravity, the material curtain has low resistance, the first chute and the second chute form an S-shaped discharging channel in space, and the air locking effect is improved.
[0019] The hot air cavity is connected with circulating hot air, the sticky and wet material is prevented from forming a wall on the chute, the material flow efficiency is improved, the maintenance frequency is reduced, and the production is ensured.
[0020] 2. The counterweight assembly can adjust the gravity to ensure the sealing effect of the first sealing curtain and the second sealing curtain, and the first sealing curtain and the second sealing curtain can be adjusted in gravity according to the selection of the plurality of counterweight pieces, and the use is more flexible. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a three-dimensional schematic view of the double-curtain type air locking valve.
[0022] Figure 2 It is an internal schematic view of the double-curtain type air locking valve.
[0023] Figure 3 The counterweight assembly is shown in the schematic view of the utility model;
[0024] In the figure: 1, the shell, 2, the feed inlet, 3, the discharge port, 4, the first chute, 5, the second chute, 6, the first sealing curtain, 7, the second sealing curtain, 8, the hot air cavity, 9, the counterweight assembly, 91, the support frame, 92, the pin shaft, 93, the counterweight piece. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] In the description of the utility model, it should be understood that the terms "front", "back", "up", "down", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.
[0027] As Figures 1-2 shown, in order to solve the problem of existing air lock valve air locking not strict, chute material walling, the embodiment discloses a double-curtain type lock valve, which can alternately lock air through the first sealing curtain 6 and the second sealing curtain 7, ensure the air locking effect, the hot air cavity 8 is connected with circulating hot air, avoid sticky material walling on the chute. It mainly includes shell 1, first chute 4, second chute 5, first sealing curtain 6 and second sealing curtain 7 and other structures.
[0028] The shell 1 is vertically distributed, and the cross section is rectangular, the upper right side of the shell 1 is provided with the feed inlet 2, and the lower right side is provided with the discharge port 3, in order to facilitate the connection with other equipment pipeline, the feed inlet 2 and the discharge port 3 are respectively welded with the connecting flange. The first chute 4 is installed in the right side wall of the shell 1 through the bolt assembly, and the first chute 4 extends downward to the left. The second chute 5 is installed in the left side wall of the shell 1 through the bolt assembly, and the second chute 5 extends downward to the right, the second chute 5 is located below the first chute 4, and the first chute 4 and the second chute 5 form an S-shaped discharge channel in space.
[0029] The first sealing curtain 6 and the second sealing curtain 7 are made of a heat-resistant rubber layer, and a plurality of heat-resistant steel plates are arranged on both sides of the heat-resistant rubber layer through bolts, so as to ensure the service life of the first sealing curtain 6 and the second sealing curtain 7. The first sealing curtain 6 is arranged at the top of the shell 1, and the bottom end of the first sealing curtain 6 extends to the tail end of the first chute 4; the second sealing curtain 7 is arranged at the bottom of the second chute 5, and the bottom end of the second sealing curtain 7 extends to the tail end of the second chute 5. The first sealing curtain 6, the second sealing curtain 7, the second chute 5 and the side wall of the shell 1 form a sealed area which is isolated from the feeding port 2 and the discharging port 3. The first sealing curtain 6 and the second sealing curtain 7 realize the air locking function of the material through the self-weight, and in order to facilitate the adjustment of the self-weight, a counterweight assembly 9 is arranged on the side away from the material flow of the first sealing curtain 6 and the second sealing curtain 7. As shown in Figure 3 the counterweight assembly 9 includes a support frame 91 fixed on one of the heat-resistant steel plates, a pin shaft 92 is arranged on the support frame 91, 3-5 counterweight pieces 93 are sleeved on the pin shaft 92, and a locking nut is arranged at the top end of the pin shaft. The number of the counterweight pieces can be adjusted according to the requirement, so as to change the self-weight of the first sealing curtain 6 and the second sealing curtain 7.
[0030] It is worth noting that the third chute and the fourth chute can be added according to the requirement in the embodiment, but in the general cement production field, only two chutes are enough.
[0031] The specific use process of the double-curtain type locking valve is as follows:
[0032] The circulating hot air is introduced into the hot air cavity 8, the temperature of the first chute 4 and the second chute 5 is increased, and the sticky and wet material is prevented from being deposited on the chutes. The first sealing curtain 6 and the second sealing curtain 7 are sealed by the self-weight, the resistance of the material curtain is low, and the first chute 4 and the second chute 5 form an S-shaped discharging channel in space. After the material enters from the feeding port 2, the material first enters the first chute 4, is intercepted by the first sealing curtain 6, and then the first sealing curtain 6 is opened as the material gradually accumulates. The material in the first chute 4 flows into the second chute 5, is intercepted by the second sealing curtain 7, and then the second sealing curtain 7 is opened as the material gradually accumulates. The material enters the discharging port 3 from the second chute 5. The two sealing curtains can improve the air locking effect of the whole system, prevent the hot air from leaking from the gap of the opened sealing curtain, and cause heat loss. The circulating hot air is introduced into the hot air cavity 8, the sticky and wet material is prevented from being deposited on the chutes, the material flow efficiency is improved, the maintenance frequency is reduced, and the production is ensured.
Claims
1. A double curtain lock valve comprising a housing, an upper end of the housing is provided with a feed port, a lower end is provided with a discharge port, characterized in that, The right side wall in the shell is provided with a first chute extending downward and leftward, and the left side wall in the shell is provided with a second chute extending downward and rightward; The second chute is located below the first chute, and the first chute and the second chute form an S-shaped discharging channel in space; The top of the shell is provided with a first sealing curtain, and the bottom end of the first sealing curtain extends to the tail end of the first chute; the bottom of the second chute is provided with a second sealing curtain, and the bottom end of the second sealing curtain extends to the tail end of the second chute; The first sealing curtain, the second sealing curtain, the second chute and the side wall of the shell form a sealed area opposite to the feeding port and the discharging port; The back of the first chute and the back of the second chute are both provided with a hot air cavity.
2. The dual curtain lock seal valve of claim 1, wherein, The first sealing curtain and the second sealing curtain are provided with a counterweight assembly on the side away from the material flow.
3. The dual curtain lock seal valve of claim 2, wherein, The first sealing curtain and the second sealing curtain both include a heat-resistant rubber layer, and the two side surfaces of the heat-resistant rubber layer are provided with a plurality of heat-resistant steel plates which are spaced and fixed by bolts; The counterweight assembly includes a support frame fixed on one of the heat-resistant steel plates, a pin shaft is installed on the support frame, a plurality of counterweight pieces are sleeved on the pin shaft, and a locking nut is installed on the top end of the pin shaft.
4. The dual curtain lock seal valve of claim 1, wherein, The feeding port is located on the right side of the upper end of the shell, and the discharging port is located on the right side of the lower end of the shell.
5. The dual curtain lock seal valve according to any one of claims 1-4, wherein, The front and rear side walls of the hot air cavity are respectively provided with an air inlet pipe and an air outlet pipe; The feeding port and the discharging port are provided with a connecting flange.