A low-temperature pyrolysis treatment device

Abstract

This utility model relates to the technical field of waste treatment devices, specifically to a low-temperature pyrolysis treatment device, including a low-temperature gasifier and an outlet pipe. The outlet pipe is provided through the top of the low-temperature gasifier. It also includes a waste gas treatment component, which includes a support frame, a spray tower body, an inclined water curtain plate, a spray circulation component, an oil-water separator, an air pump, and a purification component. The spray tower body is mounted on the support frame. Multiple layers of inclined water curtain plates are installed inside the spray tower body and are located at the upper end of the spray tower body. The spray circulation component is connected to the spray tower body and to the oil-water separator. The oil-water separator is connected to the outlet end of the spray tower body and is located at the bottom of the spray tower body. The air pump is fixedly connected to the spray tower body and is located on the front side of the spray tower body. The purification component is installed on the rear side of the spray tower body, achieving the effect of separating tar from the generated waste gas and decomposing and purifying harmful substances before labeling and discharging them.

Description

Technical Field

[0001] This utility model relates to the technical field of waste treatment devices, and in particular to a low-temperature pyrolysis treatment device. Background Technology

[0002] With the acceleration of urbanization, the problem of household waste disposal is becoming increasingly serious. Traditional waste disposal methods mainly include landfill, incineration, and composting, but these methods all have certain limitations: landfilling occupies a large amount of land resources and is prone to producing leachate and harmful substances such as methane, causing soil and groundwater pollution; although incineration can reduce waste volume, high-temperature combustion easily generates harmful substances, has high processing costs, and is very harmful to the environment; composting is only suitable for organic waste, has a long processing cycle, and cannot effectively process inorganic components such as plastics and metals.

[0003] Existing low-temperature pyrolysis technology has become a research hotspot for waste resource utilization due to its advantages such as low reaction temperature, low energy consumption, and low pollutant emissions. However, existing low-temperature pyrolysis devices still have the following problems: the tar produced during pyrolysis is prone to condensation and blockage of pipelines, and is difficult to completely separate; toxic substances are difficult to completely decompose, affecting the compliance of exhaust gas emissions.

[0004] Therefore, a low-temperature pyrolysis treatment device is provided, which is efficient, low-pollution, and easy to maintain, so as to achieve the clean and resource-based treatment of domestic waste. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature pyrolysis treatment device that solves the problems of difficult tar separation and difficult decomposition of harmful substances in existing low-temperature pyrolysis devices.

[0006] To achieve the above objectives, this utility model provides a low-temperature pyrolysis treatment device, including a low-temperature gasification furnace and a gas outlet pipe, wherein the gas outlet pipe is provided through the top of the low-temperature gasification furnace.

[0007] It also includes exhaust gas treatment components;

[0008] The exhaust gas treatment assembly includes a support frame, a spray tower body, inclined water curtain plates, a spray circulation component, an oil-water separator, an air pump, and a purification component. The spray tower body is mounted on the support frame. Multiple layers of the inclined water curtain plates are installed inside the spray tower body and located at the upper end of the spray tower body. The spray circulation component is connected to the spray tower body and to the oil-water separator. The oil-water separator is connected to the outlet end of the spray tower body and located at the bottom of the spray tower body. The air pump is fixedly connected to the spray tower body and located on the front side of the spray tower body. The purification component is installed on the rear side of the spray tower body.

[0009] The spray tower body has an observation window, which is located on the front side of the spray tower body and at the upper end of the spray tower body where the inclined water curtain plate is installed.

[0010] The spray circulation component includes a spray head and a water circulation component. The spray head is connected to the water circulation component and is located inside the spray tower. The upper end of the water circulation component is connected to the spray head, and the lower end of the water circulation component is connected to the oil-water separator.

[0011] The water circulation component includes a circulation pump, an outlet pipe, and a pumping pipe. The circulation pump is fixedly connected to the spray tower body and is located on the outer side wall of the spray tower body. The outlet pipe is located at the upper end of the circulation pump and is connected to the spray head through a water pipe. The pumping pipe is located at the lower end of the circulation pump and is connected to the water outlet end of the oil-water separator.

[0012] The purification component includes a purification chimney and an activated carbon layer. The purification chimney is fixedly connected to the spray tower body and is located on the rear side of the spray tower body, and communicates with the inner cavity of the spray tower body. The activated carbon layer is disposed inside the purification chimney.

[0013] This utility model discloses a low-temperature pyrolysis treatment device. After crushing municipal solid waste, it is fed into a low-temperature gasification furnace. The low-temperature gasification furnace operates at a temperature of 50-500 degrees Celsius, pyrolyzing the waste. During pyrolysis, mixed steam is generated, containing tar, a small amount of particulate matter, and harmful substances. The mixed steam enters the spray tower through the outlet pipe, and is cooled by spraying through multiple layers of inclined water curtain plates and the spray circulation components. The tar is condensed and separated, and the liquid tar mixed with water is fed into the oil-water separator for separation and discharge. Then, the gas enters the purification component through the air pump, where the particulate matter and harmful substances in the gas are adsorbed. After meeting the standards, it is discharged. Thus, the waste gas treatment component achieves tar separation and decomposition and purification of the generated waste gas before labeling and discharge. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the low-temperature pyrolysis treatment device of this utility model.

[0016] Figure 2 This is a front view connection diagram of the low-temperature pyrolysis treatment device of this utility model.

[0017] Figure 3This is a side view connection diagram of the low-temperature pyrolysis treatment device of this utility model.

[0018] In the diagram: 101-Low-temperature gasification furnace, 102-Gas outlet pipe, 103-Support frame, 104-Spray tower body, 105-Inclined water curtain plate, 106-Oil-water separator, 107-Air pump, 108-Observation window, 109-Spray head, 110-Circulation pump, 111-Water outlet pipe, 112-Water extraction pipe, 113-Purification chimney, 114-Activated carbon layer. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the low-temperature pyrolysis treatment device of this utility model. Figure 2 This is a front view connection diagram of the low-temperature pyrolysis treatment device of this utility model. Figure 3 This is a side view connection diagram of the low-temperature pyrolysis treatment device of this utility model.

[0021] This utility model discloses a low-temperature pyrolysis treatment device, comprising a low-temperature gasifier 101, an outlet pipe 102, and a waste gas treatment component. The waste gas treatment component includes a support frame 103, a spray tower 104, an inclined water curtain plate 105, a spray circulation component, an oil-water separator 106, an air pump 107, and a purification component. The spray tower 104 has an observation window 108. The spray circulation component includes spray heads 109 and a water circulation component, which includes a circulation pump 110, a water outlet pipe 111, and a water extraction pipe 112. The purification component includes a purification chimney 113 and an activated carbon layer 114. This solution solves the problems of difficult tar separation and difficult decomposition of harmful substances in existing low-temperature pyrolysis devices. It is understood that the aforementioned solution, through the waste gas treatment component, enables the separation of tar from the waste gas generated during the low-temperature pyrolysis treatment of municipal solid waste, and the decomposition and purification of harmful substances before labeling and discharge.

[0022] In this embodiment, the top of the low-temperature gasification furnace 101 is provided with the gas outlet pipe 102. The low-temperature gasification furnace 101 adopts low-temperature technology, and its operating temperature is 50-500 degrees Celsius. At the highest temperature, the object undergoes evaporation, gasification, carbonization, and thermal decomposition, but there is no combustion. During the pyrolysis process, the evaporated and vaporized gas contains tar, which is difficult to completely separate, and the toxic substances in the gas are difficult to completely decompose, affecting the exhaust gas to meet emission standards. The low-temperature gasification furnace 101 is connected to the waste gas treatment component through the gas outlet pipe 102 at the top. The gas is then discharged after tar separation and toxic gas purification by the waste gas treatment component to avoid affecting air quality.

[0023] The spray tower body 104 is mounted on the support frame 103. Multiple layers of inclined water curtain plates 105 are installed inside the spray tower body 104 and are located at the upper end of the spray tower body 104. The spray circulation component is connected to the spray tower body 104 and to the oil-water separator 106. The oil-water separator 106 is connected to the outlet end of the spray tower body 104 and is located at the bottom of the spray tower body 104. The air pump 107 is fixedly connected to the spray tower body 104 and is located at the front side of the spray tower body 104. The purification component is installed at the rear side of the spray tower body 104. The support frame 103 supports and installs the spray tower body 104. The spray tower body 104 is vertically arranged and divided into an upper spraying area and a lower liquid collection area. Three layers of inclined water curtain plates 105 are installed in the inner cavity of the spray tower body 104. The inclined water curtain plates 105 are made of stainless steel, and multiple spray holes are evenly spaced on each inclined water curtain plate 105. The spacing between the three layers of inclined water curtain plates 105 is the same, and the inclination of the three layers of inclined water curtain plates 105 is... The lower end of the system is connected to a common pipe, through which the spray circulation component sprays and cools the gas input to the spray tower 104. The inclined water curtain plate 105 causes the entrained tar droplets to flow towards the common pipe due to inertia. The common pipe then directs the entrained tar droplets to the collection area of ​​the spray tower 104, where they are separated into oil and water by the oil-water separator 106. The separated spray water can be recycled by supplying the spray circulation component. The spray water contains NaOH solution for use in... To neutralize acidic gases, the waste gas, after being sprayed, is blown onto the purification component by the air pump 107 installed on the spray tower 104. The waste gas is purified by the purification component, which adsorbs dust and harmful substances before being discharged. Therefore, the low-temperature gasification furnace 101 operates at a temperature of 50-500 degrees Celsius, pyrolyzing the waste. During the pyrolysis process, mixed steam is generated, which contains tar and a small amount of particulate matter and harmful substances. The mixed steam enters the spray tower 104 through the outlet pipe 102, and is sprayed and cooled by multiple layers of inclined water curtain plates 105 and the spray circulation component. The tar is condensed and separated, and the liquid tar mixed with water is fed into the oil-water separator 106 for separation and discharge. Then, the gas enters the purification component through the air pump 107, where the purification component adsorbs particulate matter and harmful substances in the gas. After meeting the standards, it is discharged. Thus, the waste gas treatment component achieves tar separation of the generated waste gas and decomposition and purification of harmful substances before being labeled and discharged.

[0024] Secondly, the observation window 108 is located on the front side of the spray tower body 104, and at the upper end of the spray tower body 104 where the inclined water curtain plate 105 is installed. The observation window 108 is made of high-temperature resistant glass and is installed in a suitable through hole in the spray tower body 104. The setting of the observation window 108 facilitates the monitoring of the internal operating status of the spray tower body 104.

[0025] Meanwhile, the spray head 109 is connected to the water circulation component and located inside the spray tower body 104; the upper end of the water circulation component is connected to the spray head 109, and the lower end of the water circulation component is connected to the oil-water separator 106. The number of spray heads 109 matches the number of inclined water curtain plates 105, and the spray heads 109 are rotating nozzles to ensure that all steam entering the spray tower body 104 is sprayed. The spray heads 109 can periodically flush the inclined water curtain plates 105 to prevent their spray holes from becoming clogged. The water circulation component provides spray water to the spray heads 109 to achieve the condensation operation of the steam.

[0026] Then, the circulating pump 110 is fixedly connected to the spray tower body 104 and located on the outer wall of the spray tower body 104; the water outlet pipe 111 is located at the upper end of the circulating pump 110 and is connected to the spray head 109 through a water pipe; the water suction pipe 112 is located at the lower end of the circulating pump 110 and is connected to the water outlet end of the oil-water separator 106. The circulating pump 110 is started, causing the water suction pipe 112 to extract the spray water separated by the oil-water separator 106, and the spray water is then transported to each spray head 109 through the water outlet pipe 111 via the water pipe connecting each spray head 109, thus achieving full recycling of the spray water through the water circulation component.

[0027] In addition, the purification chimney 113 is fixedly connected to the spray tower body 104 and is located on the rear side of the spray tower body 104, communicating with the inner cavity of the spray tower body 104; the activated carbon layer is disposed inside the purification chimney 113. A filter screen is installed at one end of the purification chimney 113 inside the spray tower body 104 to intercept some impurities. The activated carbon layer 114 is installed in a spiral shape inside the purification chimney 113 to adsorb particulate matter and harmful substances in the gas, ensuring that the gas is discharged in compliance with standards.

[0028] When using the low-temperature pyrolysis treatment device of this utility model, the municipal solid waste is crushed and then fed into the low-temperature gasification furnace 101. The low-temperature gasification furnace 101 operates at a temperature of 50-500 degrees Celsius to pyrolyze the waste. During the pyrolysis process, mixed steam is generated, which contains tar, a small amount of particulate matter, and harmful substances. The mixed steam enters the spray tower 104 through the gas outlet pipe 102 and is sprayed and cooled by multiple layers of inclined water curtain plates 105 and the spray circulation components. The tar is condensed and separated, and the liquid tar mixed with water is fed into the oil-water separator 106 for separation and discharge. Then, the gas enters the purification component through the gas pump 107. The purification component adsorbs the particulate matter and harmful substances in the gas and discharges it after it meets the standards. Thus, the waste gas treatment component achieves tar separation of the generated waste gas and decomposition and purification of harmful substances before labeling and discharge.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A low-temperature pyrolysis treatment apparatus, comprising a low-temperature gasification furnace and a gas outlet pipe, wherein the gas outlet pipe is provided through the top of the low-temperature gasification furnace, characterized in that, It also includes exhaust gas treatment components; The exhaust gas treatment assembly includes a support frame, a spray tower body, inclined water curtain plates, a spray circulation component, an oil-water separator, an air pump, and a purification component. The spray tower body is mounted on the support frame. Multiple layers of the inclined water curtain plates are installed inside the spray tower body and located at the upper end of the spray tower body. The spray circulation component is connected to the spray tower body and to the oil-water separator. The oil-water separator is connected to the outlet end of the spray tower body and located at the bottom of the spray tower body. The air pump is fixedly connected to the spray tower body and located on the front side of the spray tower body. The purification component is installed on the rear side of the spray tower body.

2. The low-temperature pyrolysis treatment apparatus as described in claim 1, characterized in that, The spray tower body has an observation window, which is located on the front side of the spray tower body and at the upper end of the spray tower body where the inclined water curtain plate is installed.

3. The low-temperature pyrolysis treatment apparatus as described in claim 1, characterized in that, The spray circulation component includes a spray head and a water circulation component. The spray head is connected to the water circulation component and is located inside the spray tower. The upper end of the water circulation component is connected to the spray head, and the lower end of the water circulation component is connected to the oil-water separator.

4. The low-temperature pyrolysis treatment apparatus as described in claim 3, characterized in that, The water circulation component includes a circulation pump, an outlet pipe, and a pumping pipe. The circulation pump is fixedly connected to the spray tower body and is located on the outer wall of the spray tower body. The outlet pipe is located at the upper end of the circulation pump and is connected to the spray head through a water pipe. The pumping pipe is located at the lower end of the circulation pump and is connected to the water outlet end of the oil-water separator.

5. The low-temperature pyrolysis treatment apparatus as described in claim 1, characterized in that, The purification component includes a purification chimney and an activated carbon layer. The purification chimney is fixedly connected to the spray tower body and is located on the rear side of the spray tower body, and communicates with the inner cavity of the spray tower body; the activated carbon layer is disposed inside the purification chimney.

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