Thin-layer evaporator air pipe with semi-automatic cleaning movable door

Abstract

The utility model relates to the technical field of sludge drying, in particular to a thin-layer evaporator air pipe with a semi-automatic cleaning movable door, which comprises an air pipe body, an inlet / outlet communicated with an inner cavity of the air pipe body is arranged on the surface of the air pipe body, and a U-shaped plate connected with the surface of the air pipe body is arranged on the periphery of the inlet / outlet. A U-shaped guide groove communicated with the inner side wall of the U-shaped plate is formed in the side face, close to the air pipe body, of the U-shaped plate, a door plate used for blocking the inlet and outlet is arranged in the U-shaped guide groove, and a lifting lug is fixedly connected to the top of the door plate. The door plate is driven by the electric hoist to rise, so that the door plate is small in occupied area after being lifted and opened, workers can conveniently enter and exit from a narrow space, meanwhile, the workers can enter the air pipe body through the large-size inlet and outlet, an inner cavity of the air pipe body can be cleaned or cleaned, and the working efficiency is improved. Compared with the prior art, certain efficiency is effectively improved, and practicability and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge drying, in particular to a thin-layer evaporator air duct with a semi-automatic cleaning movable door. Background Art

[0002] At present, most of the general biological sludge produced by municipal sewage treatment plants will be dried. After becoming dry sludge, it will be sent to power plants to be mixed with coal for co-combustion to generate electricity. It adopts a two-stage drying process. The process flow is that the wet sludge with a solid content of 20% is transported to the sludge silo of the sludge drying plant by a fully enclosed truck. After a short storage, it is pumped into a thin-layer evaporator (TFE) for drying; the thin-layer evaporator (TFE) uses 250°C saturated steam as the heat source, and indirectly dries the sludge through the heat exchange wall, increasing the solid content of the dehydrated sludge from 20% to 45%-50%. At this time, the sludge has the best plasticity. The sludge is then squeezed into noodles through a shredder and sent to the second-stage belt dryer of the sludge drying equipment via a rotary conveyor for further drying. The belt dryer is divided into three layers. The upper and middle layers use circulating hot air to directly dry the sludge. Part of the heat of the circulating hot air comes from the hot air evaporated from a thin-layer evaporator, and part comes from fresh steam, which increases the solid content of the sludge to 70-90%. Cold air is introduced into the lower layer to cool the dry sludge to below 40°C. Finally, the sludge particles are sent to the coal shed of the thermal power plant through a chain conveyor, mixed with coal and burned as fuel, which reduces the amount of sludge and recovers the energy in the sludge.

[0003] At present, when the second-stage belt dryer of the existing sludge drying equipment is in normal use, the air duct body used to transport hot air will have the problem of impurities remaining inside during long-term use, which is easy to cause internal partial blockage or poor gas circulation, thereby affecting the drying time of the sludge, resulting in a long drying time for the sludge, affecting production efficiency. Although door openings are left on the surface of the air duct body in the market for cleaning, the conventional door openings in the market are small in size, which makes it inconvenient for manual entry and exit and is quite time-consuming. In addition, the air duct body is mostly close to the wall in the factory building during normal use. Therefore, the door openings are mostly opened on the side close to the wall. Therefore, after the conventional door opening size in the market is enlarged, the existing door panels used to block the door openings occupy a large space in a small space, which is inconvenient for personnel to enter and exit. Utility Model Content

[0004] The utility model provides a thin-layer evaporator air duct with a semi-automatic cleaning movable door to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The U-shaped plate has a U-shaped groove on one side of the plate that is connected to the inner wall of the U-shaped plate, and a door plate for sealing the inlet and outlet is arranged in the U-shaped guide groove. A lifting ear is fixedly connected to the top of the door plate, and a sealing gasket is arranged between the U-shaped plate and the duct body. A through opening corresponding to the inlet and outlet is penetrated on the surface of the sealing gasket, and a return-shaped sealing groove is arranged on the outer edge of the through opening. The return-shaped sealing groove is arranged on the surface of the sealing gasket, and a return-shaped sealing strip connected to the door plate is adapted in the return-shaped sealing groove. A plurality of quick clamps are fixedly installed along the edges of the inlet and outlet on the U-shaped plate, and the quick clamps are used to lock the door plate.

[0007] Preferably, four support groups are fixedly mounted on a side of the door panel away from the return-shaped sealing strip, the four support groups are respectively arranged at four corners of the door panel, and rollers are rotatably mounted on the four support groups.

[0008] Preferably, two vertical surfaces of the inner wall of the U-shaped guide groove are respectively provided with guide grooves, the two guide grooves are symmetrically arranged with the inlet and outlet as the center line, and the guide grooves correspond to and are adapted to the rollers.

[0009] Preferably, a mounting opening is formed through the surface of the door panel, and a transparent glass is fixedly installed in the mounting opening.

[0010] Preferably, a handle is fixedly mounted on the surface of the door panel, and the handle is arranged below the transparent glass.

[0011] Preferably, the roller is made of Teflon material.

[0012] Preferably, a lifting device for hoisting the door panel is provided on one side of the air duct body.

[0013] Preferably, the lifting device includes a gantry crane and an electric hoist installed on the gantry crane, and the electric hoist lifts the door panel via a hook.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] In the utility model, the door panel is lifted by an electric hoist, so that the door panel occupies a smaller area after being lifted and opened, which is convenient for workers to enter and exit the narrow space. At the same time, it also enables the workers to enter the interior of the air duct body through a larger inlet and outlet, thereby cleaning or washing the inner cavity of the air duct body. Different from the prior art, it effectively improves the efficiency to a certain extent and has practical reliability.

[0016] In the utility model, by installing a plurality of quick clamps, the closing of the plurality of quick clamps can compress the door panel, so that the return-shaped sealing strip is closely matched in the return-shaped sealing groove, thereby ensuring the sealing degree of the air duct body.

[0017] In the utility model, when the door panel is being lifted or lowered, the roller can slide in the guide groove, thereby maintaining the stability of the door panel during the lifting or lowering process, and also ensuring the smoothness of the door panel when it is opened or closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the door panel opening structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 5 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 6 This is a schematic diagram of the structure of the return-shaped sealing strip of the utility model;

[0024] Figure 7 This is a schematic diagram of the roller structure of the utility model;

[0025] Figure 8 It is a schematic diagram of the side cross-sectional structure of the door panel of the present utility model.

[0026] In the figure: 1. Duct body; 2. Inlet and outlet; 3. U-shaped plate; 4. U-shaped guide groove; 5. Door panel; 6. Lifting ear; 7. Sealing gasket; 8. Through port; 9. Reciprocal sealing groove; 10. Reciprocal sealing strip; 11. Quick clamp; 12. Support assembly; 13. Roller; 14. Guide groove; 15. Transparent glass; 16. Handle; 17. Gantry crane; 18. Electric hoist. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0029] like Figure 1-8 As shown, the utility model provides a thin-layer evaporator air duct with a semi-automatic cleaning movable door, including an air duct body 1, an inlet and outlet 2 communicated with the inner cavity of the air duct body 1 is opened on the surface of the air duct body 1, a U-shaped plate 3 connected to the surface of the air duct body 1 is arranged around the inlet and outlet 2, a side of the U-shaped plate 3 close to the air duct body 1 is opened with a U-shaped guide groove 4 communicated with the inner side wall of the U-shaped plate 3, a door plate 5 for blocking the inlet and outlet 2 is arranged in the U-shaped guide groove 4, a lifting ear 6 is fixedly connected to the top of the door plate 5, and a sealing gasket 7 is arranged between the U-shaped plate 3 and the air duct body 1, a through opening 8 corresponding to the inlet and outlet 2 is opened on the surface of the sealing gasket 7, a return-shaped sealing groove 9 is arranged on the outer edge side of the through opening 8, the return-shaped sealing groove 9 is opened on the surface of the sealing gasket 7, and a return-shaped sealing strip 10 connected to the door plate 5 is adapted in the return-shaped sealing groove 9, a plurality of quick clamps 11 are fixedly installed along the edge of the inlet and outlet 2 on the U-shaped plate 3, and the quick clamps 11 are used to lock the door plate 5.

[0030] Specifically, the lifting ear 6 has a certain outward inclination. The inclined design enables the return-shaped sealing strip 10 on the door panel 5 to be separated from the return-shaped sealing groove 9 when the lifting ear 6 is subjected to a slight pulling force.

[0031] In this embodiment, four support groups 12 are fixedly installed on one side of the door panel 5 away from the return-shaped sealing strip 10, and the four support groups 12 are respectively arranged at the four corners of the door panel 5, and rollers 13 are rotatably installed on the four support groups 12, and guide grooves 14 are respectively opened on the two vertical surfaces of the inner wall of the U-shaped guide groove 4, and the two guide grooves 14 are symmetrically arranged with the inlet and outlet 2 as the center line, and the guide grooves 14 correspond to and are adapted to the rollers 13.

[0032] Specifically, when the door panel 5 is opened, the roller 13 thereof can slide in the guide groove 14 , thereby maintaining the stability of the door panel 5 during the lifting and lowering process, and also ensuring the smoothness of the door panel 5 when it is opened or closed.

[0033] To be more specific, the roller 13 is made of Teflon material. The excellent wear resistance, temperature resistance and good self-lubricating properties of Teflon material further enable the door panel 5 to maintain a certain smoothness during the lifting process and reduce the phenomenon of jamming. At the same time, the temperature range of Teflon material is -200℃~260℃, which can effectively avoid the problem of deformation of the roller 13 in extremely low or high temperature environments.

[0034] In this embodiment, an installation opening is opened through the surface of the door panel 5, and a transparent glass 15 is fixedly installed in the installation opening. Specifically, the transparent glass 15 is convenient for the staff to observe the internal situation of the air duct body, and perform regular maintenance or cleaning according to actual conditions. The material of the transparent glass 15 can be tempered glass or laminated glass in the prior art, and the material of high-speed rail glass can be referred to, which has high impact resistance, explosion-proof performance, sound insulation and heat insulation performance, which will not be elaborated in this article.

[0035] In this embodiment, a handle 16 is fixedly installed on the surface of the door panel 5, and the handle 16 is arranged below the transparent glass 15. Specifically, through the design of the handle 16, when the door panel 5 needs to be opened, the handle 16 can be manually pulled to cause the return-shaped sealing strip 10 on the door panel 5 to disengage from the return-shaped sealing groove 9, and the roller 13 enters the guide groove 14, so that the roller 13 can always be in the guide groove 14 when the door panel 5 is raised.

[0036] To be more specific, when the door panel 5 is positioned and locked by the quick clamp 11, its roller 13 can be separated from the guide groove 14, and when the door panel 5 is pulled by the handle 16, its roller 13 can enter the guide groove 14, and at the same time, the return sealing strip 10 is separated from the return sealing groove 9.

[0037] In this embodiment, a lifting device for hoisting the door panel 5 is provided on one side of the air duct body 1, and the lifting device includes a gantry crane 17 and an electric hoist 18 installed on the gantry crane 17. The electric hoist 18 hoists the door panel 5 through a hook. Specifically, the lifting device here is not limited to one type of electric hoist 18. The application document adopts the electric hoist 18 mainly because there is an electric hoist 18 in the factory building. Therefore, considering the multiple uses of one object and reducing costs, a lifting device in the form of an electric hoist 18 is directly adopted; and when the lifting device does not care about the multiple uses of one object, it can be driven by a hydraulic cylinder or by a motor and a chain. The two lifting methods are conventional structures in the prior art. Those skilled in the art have basic common sense that is familiar and applied, and will not be elaborated in detail herein.

[0038] The working principle and use process of the utility model are as follows: when the door panel 5 is closed, the return-shaped sealing strip 10 on its surface can be arranged in the return-shaped sealing groove 9, and then the multiple quick clamps 11 are closed, so that the multiple quick clamps 11 can press the door panel 5 tightly, so that the return-shaped sealing strip 10 is tightly matched in the return-shaped sealing groove 9, and the sealing degree of the air duct body 1 is ensured. Therefore, after long-term use, the staff can observe the situation inside the air duct through the transparent glass 15. Therefore, when it is necessary to clean the inside, the electric hoist 18 in the factory room is hooked on the lifting ear 6 on the door panel 5, and then the electric hoist 18 in the factory room is used to clean the air duct. Manually open multiple quick clamps 11 one by one, and manually pull the handle 16 to move the door panel 5 outward, so that the roller 13 set in the guide groove 14 enters the guide groove 14, and the top of the door panel 5 is slightly operated by the electric hoist 18 to make the return sealing strip 10 disengage from the return sealing groove 9, thereby avoiding the problem that the door panel 5 cannot be disengaged. After the door panel 5 is completely disengaged, the electric hoist 18 can be operated to make the door panel 5 stably lifted, so that after the door panel 5 is opened, manual labor can enter the inner cavity of the air duct body through the larger inlet and outlet 2 for cleaning or washing, thereby improving efficiency to a certain extent.

[0039] In the present utility model, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used in this article includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0040] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thin-layer evaporator air duct with a semi-automatic cleaning movable door, characterized in that: The invention comprises an air duct body (1), wherein the surface of the air duct body (1) is provided with an inlet and outlet (2) communicating with the inner cavity of the air duct body (1), a U-shaped plate (3) connected to the surface of the air duct body (1) is provided around the inlet and outlet (2), a U-shaped guide groove (4) communicating with the inner side wall of the U-shaped plate (3) is provided on a side of the U-shaped plate (3) close to the air duct body (1), a door plate (5) for blocking the inlet and outlet (2) is provided in the U-shaped guide groove (4), a lifting ear (6) is fixedly connected to the top of the door plate (5), and the U-shaped plate (3) is connected to the air duct A sealing gasket (7) is arranged between the main body (1), and a through opening (8) corresponding to the inlet and outlet (2) is formed through the surface of the sealing gasket (7), and a return-shaped sealing groove (9) is provided on the outer edge of the through opening (8). The return-shaped sealing groove (9) is formed on the surface of the sealing gasket (7), and a return-shaped sealing strip (10) connected to the door panel (5) is adapted in the return-shaped sealing groove (9). A plurality of quick clamps (11) are fixedly installed along the edge of the inlet and outlet (2) on the U-shaped plate (3), and the quick clamps (11) are used to lock the door panel (5).

2. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 1, characterized in that: Four support groups (12) are fixedly mounted on a side of the door panel (5) away from the return-shaped sealing strip (10); the four support groups (12) are respectively arranged at four corners of the door panel (5); and rollers (13) are rotatably mounted on the four support groups (12).

3. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 2, characterized in that: Two vertical surfaces of the inner wall of the U-shaped guide groove (4) are respectively provided with guide grooves (14), the two guide grooves (14) are symmetrically arranged with the inlet and outlet (2) as the center line, and the guide grooves (14) correspond to and are adapted to the roller (13).

4. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 1, characterized in that: A mounting opening is provided through the surface of the door panel (5), and a transparent glass (15) is fixedly installed in the mounting opening.

5. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 4, characterized in that: A handle (16) is fixedly mounted on the surface of the door panel (5), and the handle (16) is arranged below the transparent glass (15).

6. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 2, characterized in that: The roller (13) is made of Teflon material.

7. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 1, characterized in that: A lifting device for lifting the door panel (5) is provided on one side of the air duct body (1).

8. The thin-layer evaporator air duct with a semi-automatic cleaning movable door according to claim 7, characterized in that: The lifting device comprises a gantry crane (17) and an electric hoist (18) installed on the gantry crane (17), and the electric hoist (18) lifts the door panel (5) via a lifting hook.

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