Pressure vessel for treating formaldehyde byproduct steam tail gas

Abstract

The utility model discloses a pressure vessel for formaldehyde byproduct steam tail gas treatment, which comprises a pressure vessel body, the right side of the top of the pressure vessel body is fixedly connected with a protective cover, and a filter screen is movably clamped above the inside of the protective cover. The pressure container body, the water inlet pipe, the exhaust pipe, the protective cover, the filter screen, the heat exchange pipe, the supporting block, the positioning mechanism, the shell, the movable plate, the clamping plate, the pull rod, the first handle, the limiting groove, the stop block, the limiting block, the movable rod, the second handle and the sleeve spring are matched with one another; the problems that according to a common pressure container for formaldehyde byproduct steam tail gas treatment, a filter screen is inconvenient to disassemble, the disassembly process is tedious in operation, and time and labor are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a pressure vessel for treating tail gas of by - product steam of formaldehyde. Background Technique

[0002] The tail gas discharged from the absorption tower in the silver - method formaldehyde production contains about 16% - 21% of hydrogen, and also contains: CO, CO2, N2, CH4, etc. Its calorific value is about 1845 - 2245 kJ / m3. Generally, we use combustion or filtration methods to eliminate the environmental pollution of the tail gas and utilize the heat energy generated by combustion to produce steam.

[0003] At present, the common pressure vessels for treating tail gas of by - product steam of formaldehyde are not convenient for disassembling the filter net. The disassembly process is cumbersome, time - consuming and laborious. For this reason, we propose a pressure vessel for treating tail gas of by - product steam of formaldehyde. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pressure vessel for treating tail gas of by - product steam of formaldehyde, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A pressure vessel for treating tail gas of by - product steam of formaldehyde, comprising:

[0006] A pressure vessel body;

[0007] A protective cover, the right - hand side of the top of the pressure vessel body is fixedly connected with a protective cover, and a filter net is movably clamped above the inside of the protective cover;

[0008] Support blocks, both the left and right sides of the inner wall of the protective cover and at the bottom of the filter net are fixedly connected with support blocks, and the top of the support blocks is in movable contact with the bottom of the filter net;

[0009] A positioning mechanism, the top of the protective cover is provided with a positioning mechanism.

[0010] Furthermore, a water inlet pipe is fixedly connected to the left - hand side of the top of the pressure vessel body, a valve is installed on the water inlet pipe, an exhaust pipe is fixedly connected to the upper right - hand side of the pressure vessel body, and a pressure relief valve is installed on the exhaust pipe.

[0011] Furthermore, a heat exchange pipe is fixedly installed at the bottom of the pressure vessel body, and the top end of the heat exchange pipe penetrates through the pressure vessel body and extends into the inside of the protective cover.

[0012] Furthermore, the positioning mechanism includes a housing, a movable plate, a clamping plate, a pull rod, a first handle, a limiting groove, a stopper, a limiting block, a movable rod, a second handle, and a sleeve spring. Shells are fixedly connected to both the left and right sides of the top of the protective cover. A movable plate is movably connected to one side of the inner wall of the housing close to the filter net. The bottom of the movable plate is in movable contact with the top of the protective cover. A clamping plate is fixedly connected to the bottom of the movable plate on the side close to the filter net. The side of the clamping plate away from the movable plate penetrates through the housing and extends to the outside of the housing.

[0013] Furthermore, the clamping plate is movably connected to the housing. The bottom of the clamping plate is in movable contact with the top of the filter net and the top of the protective cover.

[0014] Furthermore, two pull rods are fixedly connected to the side of the movable plate away from the clamping plate. The end of the pull rod away from the movable plate penetrates through the housing and extends to the outside of the housing. The pull rod is movably connected to the housing. The ends of the two pull rods away from the movable plate are fixedly connected to the same first handle. A limiting groove is provided at the top of the movable plate. A stopper is movably connected to the top of the movable plate. A limiting block is fixedly connected to the bottom of the stopper. The bottom of the limiting block penetrates through the limiting groove and extends into the inside of the limiting groove.

[0015] Furthermore, the limiting block is movably clamped with the limiting groove. A movable rod is fixedly connected to the top of the stopper. The top of the movable rod penetrates through the housing and extends to the outside of the housing and is fixedly connected to a second handle. The movable rod is movably connected to the housing. A sleeve spring is sleeved on the surface of the movable rod.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] Through the mutual cooperation of the pressure vessel body, the water inlet pipe, the exhaust pipe, the protective cover, the filter net, the heat exchange pipe, the support block, the positioning mechanism, the housing, the movable plate, the clamping plate, the pull rod, the first handle, the limiting groove, the stopper, the limiting block, the movable rod, the second handle, and the sleeve spring, the present utility model solves the problems that the filter net of a common pressure vessel for treating formaldehyde by-product steam tail gas is not easy to disassemble, and the disassembly process is cumbersome, time-consuming and laborious. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the present utility model;

[0019] Figure 2 is the front view structural sectional view of the present utility model;

[0020] Figure 3 is the assembly structural schematic diagram of the protective cover and the filter net of the present utility model;

[0021] Figure 4This is a schematic structural diagram of the positioning mechanism of the present utility model.

[0022] In the figure: 1. Pressure vessel body; 2. Water inlet pipe; 3. Exhaust pipe; 4. Protective cover; 5. Filter screen; 6. Heat exchange tube; 7. Support block; 8. Positioning mechanism; 801. Housing; 802. Movable plate; 803. Clamping plate; 804. Pull rod; 805. First handle; 806. Limit groove; 807. Stopper; 808. Limit block; 809. Movable rod; 810. Second handle; 811. Sleeve spring. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. 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.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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 specific situations.

[0026] Please refer to Figures 1-4, a pressure vessel for treating formaldehyde by - product steam tail gas, comprising a pressure vessel body 1. A protective cover 4 is fixedly connected to the right side of the top of the pressure vessel body 1. A filter screen 5 is movably clamped above the interior of the protective cover 4. Support blocks 7 are fixedly connected to both the left and right sides of the inner wall of the protective cover 4 and are located at the bottom of the filter screen 5. The top of the support block 7 is in movable contact with the bottom of the filter screen 5. A positioning mechanism 8 is arranged at the top of the protective cover 4.

[0027] Specifically, a water inlet pipe 2 is fixedly connected to the left side of the top of the pressure vessel body 1, and a valve is installed on the water inlet pipe 2. An exhaust pipe 3 is fixedly connected to the upper right side of the pressure vessel body 1, and a pressure relief valve is installed on the exhaust pipe 3.

[0028] During specific implementation, a heat exchange pipe 6 is fixedly installed at the bottom of the pressure vessel body 1, and the top end of the heat exchange pipe 6 penetrates the pressure vessel body 1 and extends into the interior of the protective cover 4.

[0029] Specifically, the positioning mechanism 8 includes a housing 801, a movable plate 802, a clamping plate 803, a pull rod 804, a first handle 805, a limiting groove 806, a stop block 807, a limiting block 808, a movable rod 809, a second handle 810 and a sleeve spring 811. Shells 801 are fixedly connected to both the left and right sides of the top of the protective cover 4. A movable plate 802 is movably connected to the side of the inner wall of the housing 801 close to the filter screen 5. The bottom of the movable plate 802 is in movable contact with the top of the protective cover 4. A clamping plate 803 is fixedly connected to the bottom of the side of the movable plate 802 close to the filter screen 5. The side of the clamping plate 803 away from the movable plate 802 penetrates the housing 801 and extends to the outside of the housing 801.

[0030] During specific implementation, the clamping plate 803 is movably connected to the housing 801. The bottom of the clamping plate 803 is in movable contact with the top of the filter screen 5, and the bottom of the clamping plate 803 is in movable contact with the top of the protective cover 4.

[0031] Specifically, two pull rods 804 are fixedly connected to the side of the movable plate 802 away from the clamping plate 803. The end of the pull rod 804 away from the movable plate 802 penetrates the housing 801 and extends to the outside of the housing 801. The pull rod 804 is movably connected to the housing 801. The ends of the two pull rods 804 away from the movable plate 802 are fixedly connected to the same first handle 805. A limiting groove 806 is opened at the top of the movable plate 802. A stop block 807 is movably connected to the top of the movable plate 802. A limiting block 808 is fixedly connected to the bottom of the stop block 807. The bottom of the limiting block 808 penetrates the limiting groove 806 and extends into the interior of the limiting groove 806.

[0032] During specific implementation, the limit block 808 is movably clamped with the limit groove 806. The top of the stop block 807 is fixedly connected to a movable rod 809. The top of the movable rod 809 penetrates through the housing 801 and extends to the outside of the housing 801 and is fixedly connected to a second handle 810. The movable rod 809 is movably connected to the housing 801, and a sleeve spring 811 is sleeved on the surface of the movable rod 809.

[0033] In practical application: When in use, the pressure vessel body 1 is filled with water through the water inlet pipe 2. Then, the tail gas discharged from the silver method formaldehyde production absorption tower is introduced into the bottom end of the heat exchange tube 6. Then, the tail gas is discharged from the top end of the heat exchange tube 6 into the protective cover 4. Then, the tail gas is filtered by the filter screen 5 and discharged from the protective cover 4. At the same time, the water inside the pressure vessel body 1 is heated by the heat exchange tube 6 to generate steam. When the pressure inside the pressure vessel body 1 is too high, the steam is discharged through the exhaust pipe 3 under the action of the pressure relief valve. When it is necessary to disassemble the filter screen 5, only need to pull up the second handle 810, thereby driving the movable rod 809, the stop block 807 and the limit block 808 to move upward, and at the same time compress the sleeve spring 811, so that the limit block 808 is disengaged from the limit groove 806. Then, pull the first handle 805 outward, thereby driving the pull rod 804, the movable plate 802 and the clamping plate 803 to move to the side away from the filter screen 5, so that the clamping plate 803 is disengaged from the filter screen 5. Then, pull up the filter screen 5, so that the filter screen 5 can be disengaged from the protective cover 4. Through the above steps, the filter screen 5 can be conveniently disassembled, with simple operation, time-saving and labor-saving.

[0034] All components in the present utility model are common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods. At the same time, the standard parts used in this application document can all be purchased from the market. Each component in this application document can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art.

[0035] Through those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and appropriate controllers and encoders should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle and complete the electrical connection according to the sequence of the electrical components working successively. The detailed connection means are well-known techniques in the art. The present utility model mainly introduces the working principle and process and will no longer explain the electrical control.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel for treating formaldehyde by - product steam tail gas, characterized in that, Comprising: The pressure vessel body (1); A protective cover (4), the right side of the top of the pressure vessel body (1) is fixedly connected with a protective cover (4), and a filter screen (5) is movably clamped above the inside of the protective cover (4); Support blocks (7), both the left and right sides of the inner wall of the protective cover (4) and at the bottom of the filter screen (5) are fixedly connected with support blocks (7), and the top of the support blocks (7) is in movable contact with the bottom of the filter screen (5); A positioning mechanism (8), the positioning mechanism (8) is arranged on the top of the protective cover (4).

2. A pressure vessel for treating formaldehyde by - product steam tail gas according to claim 1, characterized in that: The left side of the top of the pressure vessel body (1) is fixedly and communicatively connected with a water inlet pipe (2), a valve is installed on the water inlet pipe (2), the upper right side of the pressure vessel body (1) is fixedly and communicatively connected with an exhaust pipe (3), and a pressure relief valve is installed on the exhaust pipe (3).

3. A pressure vessel for treating formaldehyde by - product steam tail gas according to claim 2, characterized in that: The bottom of the pressure vessel body (1) is fixedly installed with a heat exchange tube (6), and the top end of the heat exchange tube (6) penetrates through the pressure vessel body (1) and extends into the protective cover (4).

4. A pressure vessel for treating formaldehyde by-product steam tail gas according to claim 3, characterized in that: The positioning mechanism (8) includes a housing (801), the left and right sides of the top of the protective cover (4) are fixedly connected with a housing (801), a movable plate (802) is movably connected to the side of the inner wall of the housing (801) close to the filter screen (5), a clamping plate (803) is fixedly connected to the bottom of the side of the movable plate (802) close to the filter screen (5), and the side of the clamping plate (803) away from the movable plate (802) penetrates through the housing (801) and extends to the outside of the housing (801).

5. A pressure vessel for treating formaldehyde by - product steam tail gas according to claim 4, wherein: The clamping plate (803) is movably connected with the housing (801), and the bottom of the clamping plate (803) is in movable contact with the top of the protective cover (4).

6. A pressure vessel for treating formaldehyde by - product steam tail gas according to claim 5, characterized in that: Two pull rods (804) are fixedly connected to the side of the movable plate (802) away from the clamping plate (803), the ends of the pull rods (804) away from the movable plate (802) penetrate through the housing (801) and extend to the outside of the housing (801), the ends of the two pull rods (804) away from the movable plate (802) are fixedly connected with the same first handle (805), a limiting groove (806) is formed in the top of the movable plate (802), a blocking block (807) is movably connected to the top of the movable plate (802), a limiting block (808) is fixedly connected to the bottom of the blocking block (807), and the bottom of the limiting block (808) penetrates through the limiting groove (806) and extends into the inside of the limiting groove (806).

7. A pressure vessel for treating formaldehyde by - product steam tail gas according to claim 6, characterized in that: A movable rod (809) is fixedly connected to the top of the blocking block (807), the top of the movable rod (809) penetrates through the housing (801) and extends to the outside of the housing (801) and is fixedly connected with a second handle (810), the movable rod (809) is movably connected with the housing (801), and a sleeve spring (811) is sleeved on the surface of the movable rod (809).

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