Activation furnace top flue gas collection system

Abstract

This utility model relates to the field of flue gas collection technology, specifically a flue gas collection system for the top of an activation furnace. The system includes an activation furnace with multiple flange joints on its top. Pipe connectors are connected to the upper ends of the flange joints via multiple No. 1 bolts. It also includes a protective assembly located outside the flange joints. The protective assembly includes a protective shell movably fitted onto the outside of the flange joints. Both ends of the protective shell are symmetrically fitted with sealing covers. No. 1 connecting lugs are symmetrically fixed at both ends of the outer surface of the sealing covers. An exhaust assembly is located on one side of the protective shell. In this utility model, by setting a protective assembly outside the flange, the flange connection is sealed a second time. A pressure sensor is installed inside the protective shell. When an increase in pressure is detected, the exhaust assembly operates, discharging the escaping flue gas to a designated location via a fan. This facilitates the collection of flue gas when there is leakage at the flange connection, preventing flue gas from escaping.

Description

Technical Field

[0001] This utility model relates to the field of flue gas collection technology, specifically to a flue gas collection system for the top of an activation furnace. Background Technology

[0002] The activation furnace is the main equipment for producing activated carbon, which is an important material in various industries and environmental protection sectors. In particular, the application and demand in gold mines are increasing day by day. However, the production process of activated carbon will generate a large amount of flue gas and dust, which contains many harmful pollutants. If not handled properly, it will pollute the atmosphere. The top of the activation furnace is usually the area where high-temperature flue gas is collected and discharged. Therefore, the top of the furnace is one of the key parts to prevent flue gas from overflowing and strict sealing measures must be taken.

[0003] The leakage points of existing activation furnace tops are mostly concentrated at various flange interfaces. These interfaces are used to connect pipelines or install monitoring equipment and are usually sealed with high-temperature resistant gaskets. After long-term operation, the bolts that fasten the flanges are prone to loosening, which weakens the sealing performance of the flange connection. At the same time, the furnace top area is under high temperature and high pressure due to the accumulation of flue gas. Under the continuous compression of the flange, the gaskets are prone to deterioration or structural damage. Under the combined effect of these two factors, the seal at the flange connection is prone to failure, and flue gas can easily escape from the gaps, making it difficult to collect the escaped flue gas. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas collection system for the top of an activation furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The activation furnace top flue gas collection system includes an activation furnace, with multiple flange joints installed on the top of the furnace. Pipe fittings are connected to the upper ends of the flange joints via multiple No. 1 bolts. The system also includes:

[0007] A protective assembly is provided on the outside of the flange joint. The protective assembly includes a protective shell that is movably sleeved on the outside of the flange joint. Both ends of the protective shell are symmetrically provided with sealing covers. A No. 1 connecting lug is symmetrically fixedly installed at both ends of the outer surface of the sealing cover.

[0008] The exhaust assembly is located on one side of the protective housing.

[0009] Furthermore, multiple No. 2 connecting lugs are fixedly installed at equal angles on the inner surface of the protective shell, and multiple No. 1 bolts are movably inserted through the No. 2 connecting lugs at corresponding positions, and nuts are screwed onto the outer sides of the multiple No. 1 bolts above the No. 2 connecting lugs.

[0010] Furthermore, the protective shell has rings fixedly installed on both its upper and lower surfaces, and a sealing gasket is fixedly installed on the inner surface of the sealing cover. The sealing gasket is movably fitted with the rings and the pipe connectors, respectively.

[0011] Furthermore, bolt fasteners are detachably connected between the No. 1 connecting ears at the two corresponding positions.

[0012] Furthermore, an exhaust pipe is fixedly embedded at the lower end of the outer surface of the protective shell, and a pressure sensor is fixedly embedded on the outer surface of the protective shell.

[0013] Preferably, the exhaust assembly includes:

[0014] Ultra-high temperature solenoid valve, fixedly connected to one end of the exhaust pipe;

[0015] The blower is fixedly installed on the outer surface of the activation furnace.

[0016] Preferably, one end of each of the multiple ultra-high temperature solenoid valves is fixedly connected to a connecting pipe, one end of each of the multiple connecting pipes is fixedly connected to a multi-port pipe, and one end of the multi-port pipe is fixedly connected to the air inlet port of the fan.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By attaching multiple No. 2 connecting lugs to the outside of the No. 1 bolt at the corresponding position, and then tightening the nut from one side of the No. 2 connecting lug, the protective shell is fixed. Two sealing covers are placed on the outside of the ring and flange joint or pipe connection. By setting up the protective components, the flange joint is sealed a second time, the escaping flue gas is collected, and the flue gas is prevented from being discharged into the air, thus reducing pollution.

[0019] 2. The pressure sensor detects the pressure inside the protective housing. When the pressure increases to the set value, the external PLC controller determines that the flue gas is escaping. The corresponding ultra-high temperature solenoid valve opens, the fan runs, and the flue gas collected inside the protective housing is led out through the connecting pipe and multi-port pipe and discharged into the flue gas pipeline or flue gas purification equipment connected to the fan. This facilitates the discharge of the escaping flue gas to the designated location, collects the flue gas, and prevents the flue gas from escaping into the air. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the protective shell in this utility model;

[0022] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the protective component and flange interface in this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the protective component and flange interface in this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the exhaust component in this utility model.

[0025] In the diagram: 1. Activation furnace; 101. Flange joint; 102. Pipe connector; 103. Bolt No. 1; 104. Nut; 2. Protective components; 201. Protective shell; 202. Ring; 203. Sealing cover; 204. Sealing gasket; 205. Connecting ear No. 1; 206. Bolt fastener; 207. Connecting ear No. 2; 208. Exhaust pipe; 3. Exhaust assembly; 301. Ultra-high temperature solenoid valve; 302. Connecting pipe; 303. Multi-port pipe; 304. Fan. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 In this embodiment of the utility model, the flue gas collection system on the top of the activation furnace includes an activation furnace 1. The top of the activation furnace 1 is provided with multiple flange joints 101. The upper end of the flange joints 101 is connected to a pipe connector 102 by multiple No. 1 bolts 103. The pipe connector 102 is a connector for connecting a pipe or equipment to the flange joint 101. The system also includes a protective component 2, which is disposed on the outside of the flange joints 101. The protective component 2 includes a protective shell 201 that is movably sleeved on the outside of the flange joints 101. Both ends of the protective shell 201 are symmetrically provided with sealing covers 203. Both ends of the outer surface of the sealing cover 203 are symmetrically fixedly installed with No. 1 connecting ears 205. The exhaust component 3 is disposed on one side of the protective shell 201.

[0028] Specifically, bolt 103 is an extended structure used to pass through connecting lug 207 and then screw nut 104 on. It covers the outside of flange joint 101 through protective component 2, sealing the connection of flange joint 101 from the outside again. The exhaust component 3 collects and discharges the flue gas inside protective component 2.

[0029] Example 1

[0030] like Figure 2-4As shown, in this embodiment, multiple No. 2 connecting ears 207 are fixedly installed at equal angles on the inner surface of the protective shell 201, and multiple No. 1 bolts 103 move through the No. 2 connecting ears 207 at corresponding positions, and nuts 104 are screwed onto the outer side of the multiple No. 1 bolts 103 above the No. 2 connecting ears 207.

[0031] In this embodiment, multiple second connecting lugs 207 are fitted onto the outside of the first bolt 103 at the corresponding positions. Then, the nut 104 is screwed on from one side of the second connecting lug 207, so that the nut 104 and the first bolt 103 are screwed together to tighten the second connecting lug 207. At the same time, a force is applied to the original nut of the flange joint 101 on the surface of the first bolt 103 to reduce the risk of the original nut loosening and improve the sealing effect.

[0032] like Figure 4 As shown, in this embodiment, a ring 202 is fixedly installed on the upper and lower surfaces of the protective shell 201, and a sealing gasket 204 is fixedly installed on the inner surface of the sealing cover 203. The sealing gasket 204 is movably fitted with the ring 202 and the pipe connector 102 respectively; a bolt fastener 206 is detachably connected between the first connecting ears 205 at two corresponding positions.

[0033] In practice, two sealing covers 203 are installed symmetrically, covering the outside of the ring 202 and the flange joint 101 or pipe connection 102. They are sealed by the sealing gasket 204. Then, two connecting ears 205 are connected by bolts and fasteners 206 to fix the two symmetrical sealing covers 203. At the same time, the force of the bolts and fasteners 206 is applied to the sealing gasket 204 to increase the sealing performance. Thus, by setting up the protective component 2, the flange joint 101 is sealed a second time, the escaping flue gas is collected, and the flue gas is prevented from being discharged into the air, thus reducing pollution.

[0034] Example 2

[0035] Based on Embodiment 1, in order to compensate for the problem that the flue gas escaping from inside the protective shell 201 is not easy to collect.

[0036] like Figure 1 As shown, in this embodiment, an exhaust pipe 208 is fixedly embedded at the lower end of the outer surface of the protective shell 201, and a pressure sensor is fixedly embedded on the outer surface of the protective shell 201.

[0037] In practice, the air pressure sensor senses the pressure inside the protective shell 201. When the pressure increases to the set value, the external PLC controller determines the emission of flue gas and controls the operation of the exhaust assembly 3.

[0038] like Figure 1 and Figure 5As shown, in this embodiment, the exhaust assembly 3 includes: an ultra-high temperature solenoid valve 301 fixedly connected to one end of the exhaust pipe 208, and a fan 304 fixedly installed on the outer surface of the activation furnace 1; one end of each of the multiple ultra-high temperature solenoid valves 301 is fixedly connected to a connecting pipe 302, one end of each connecting pipe 302 is fixedly connected to a multi-port pipe 303, and one end of the multi-port pipe 303 is fixedly connected to the air inlet port of the fan 304.

[0039] In specific implementation, when installing the exhaust assembly 3, the exhaust end of the fan 304 is connected to the flue gas duct or flue gas purification equipment according to the usage requirements, so as to facilitate the treatment of flue gas. When flue gas is detected to be escaping, the corresponding ultra-high temperature solenoid valve 301 opens, the fan 304 operates, and the flue gas collected inside the protective shell 201 is led out through the connecting pipe 302 and the multi-port pipe 303 and discharged into the flue gas duct or flue gas purification equipment connected to the fan 304, so as to facilitate the discharge of the escaping flue gas to the designated location, collect the flue gas, and prevent the flue gas from escaping into the air.

[0040] In this utility model, in order to facilitate the operator's control of the utility model, a PLC controller can be set up, and the ultra-high temperature solenoid valve 301, the fan 304 and the air pressure sensor are all electrically connected to the PLC controller. The PLC controller and the air pressure sensor are existing technologies and will not be described in detail here.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue gas collection system for the top of an activation furnace, comprising an activation furnace (1), wherein multiple flange joints (101) are provided on the top of the activation furnace (1), and pipe connectors (102) are connected to the upper end of the flange joints (101) by multiple No. 1 bolts (103), characterized in that, Also includes: The protective assembly (2) is located outside the flange joint (101). The protective assembly (2) includes a protective shell (201) that is movably sleeved on the outside of the flange joint (101). Both ends of the protective shell (201) are symmetrically provided with sealing covers (203). A first connecting lug (205) is symmetrically fixed at both ends of the outer surface of the sealing cover (203). The exhaust assembly (3) is located on one side of the protective shell (201).

2. The flue gas collection system for the activation furnace top according to claim 1, characterized in that, Multiple No. 2 connecting ears (207) are fixedly installed at equal angles on the inner surface of the protective shell (201). Multiple No. 1 bolts (103) are movably inserted through the No. 2 connecting ears (207) at the corresponding positions, and nuts (104) are screwed onto the outer side of the multiple No. 1 bolts (103) above the No. 2 connecting ears (207).

3. The flue gas collection system for the activation furnace top according to claim 1, characterized in that, A ring (202) is fixedly installed on the upper and lower surfaces of the protective shell (201), and a sealing gasket (204) is fixedly installed on the inner surface of the sealing cover (203). The sealing gasket (204) is in contact with the ring (202) and the pipe connector (102) respectively.

4. The flue gas collection system for the activation furnace top according to claim 1, characterized in that, A bolt fastener (206) is detachably connected between the two corresponding No. 1 connecting lugs (205).

5. The flue gas collection system for the activation furnace top according to claim 1, characterized in that, An exhaust pipe (208) is fixedly embedded at the lower end of the outer surface of the protective shell (201), and a pressure sensor is fixedly embedded on the outer surface of the protective shell (201).

6. The flue gas collection system for the activation furnace top according to claim 5, characterized in that, The exhaust assembly (3) includes: An ultra-high temperature solenoid valve (301) is fixedly connected to one end of the exhaust pipe (208); The blower (304) is fixedly installed on the outer surface of the activation furnace (1).

7. The activation furnace top flue gas collection system according to claim 6, characterized in that, Multiple ultra-high temperature solenoid valves (301) are fixedly connected to one end of a connecting pipe (302), and multiple connecting pipes (302) are fixedly connected to one end of a multi-port pipe (303). One end of the multi-port pipe (303) is fixedly connected to the air inlet port of the fan (304).

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