A vertical sludge incinerator based on sludge incineration

Abstract

The utility model relates to sludge incinerator technical field, and disclose a vertical sludge incinerator based on sludge incineration, including staggered cross mechanical grate, staggered cross mechanical grate oil pressure piston, flap type complete combustion device, flap type complete combustion device oil pressure piston and flap type complete combustion device ash pipe, sludge moves along the vertical direction in the furnace body, realizes complete incineration through above-mentioned component synergy. The staggered cross mechanical grate is staggered arrangement up and down along the vertical direction in the both sides of furnace body, can turn over sludge to enhance the contact with the combustion air when moving. The staggered cross mechanical grate adopts the special cast steel material of high temperature resistance, wear resistance and corrosion resistance to make. The utility model can effectively promote sludge complete combustion, makes sludge float loose through the combustion air to improve the air and sludge contact probability, can also prevent the short circuit of combustion air, avoid the grate to be burnt by high temperature, guarantee good flame diffusion simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of sludge incinerator technology, specifically a vertical sludge incinerator based on sludge incineration. Background Technology

[0002] The main methods of sludge treatment include landfill, biocomposting, and incineration. Landfill standards are becoming increasingly stringent, and the secondary pollution and land occupation caused by landfilling are gradually reducing its usage. Biocomposting is also limited by heavy metal contamination in sludge. Therefore, sludge incineration can completely solve the problem of secondary pollution, save land to the maximum extent, and can be reused as building materials such as roadbeds and curbs. Sludge incineration technology will steadily develop in the future.

[0003] In sludge incineration systems, the incineration unit is a critical piece of equipment. The technology of the incineration unit affects whether the sludge can be completely burned, the content of unburned organic matter in the ash discharged from the furnace, and the heat recovery efficiency from the sludge. It also influences sludge regeneration and secondary environmental pollution. To ensure sufficient and complete combustion of sludge in the incinerator while minimizing the heat loss from the ash, it is necessary to maximize the contact between the sludge and the combustion air to achieve complete combustion, while minimizing the increase in furnace volume. Therefore, a new type of sludge incineration unit has been developed. This unit can completely control the residence time of the sludge on the grate for complete combustion. Furthermore, because the grate agitates the sludge during operation, it enhances the contact with the combustion air. The combustion air rises from the bottom of the incinerator through the gaps between the grate bars, and the pressurized combustion air floats and loosens the sludge, increasing the probability of air-sludge contact and contributing to complete combustion.

[0004] Therefore, it is necessary to design a highly practical vertical sludge incinerator based on sludge incineration. Utility Model Content

[0005] The purpose of this invention is to provide a vertical sludge incinerator based on sludge incineration to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a vertical mechanical grate sludge incinerator, including an interlaced forked mechanical grate, a hydraulic piston for the interlaced forked grate, a flap-type complete combustion device, a hydraulic piston for the flap-type complete combustion device, and a lower ash pipe for the flap-type complete combustion device; the sludge moves vertically in the furnace body, and complete combustion is achieved through the synergistic action of the above components.

[0007] According to the above technical solution, the staggered fork-shaped mechanical grate is arranged vertically on both sides of the furnace body, and can turn over the sludge during movement to enhance the contact with the combustion air.

[0008] According to the above technical solution, the staggered mechanical grate is made of high-temperature resistant, wear-resistant and corrosion-resistant cast steel material. The dried sludge on it is divided into a main combustion layer, a complete combustion layer and a stationary combustion zone from top to bottom, and the layers are switched as the grate is periodically opened and closed.

[0009] According to the above technical solution, the combustion air rises from the bottom of the interlaced mechanical grate through the gap between the grates. The pressurized combustion air can make the sludge float and loosen, increasing the probability of contact between the air and the sludge.

[0010] According to the above technical solution, the staggered fork grate is driven by a hydraulic piston to periodically open and close the staggered fork mechanical grate, thereby realizing the vertical movement of sludge and the conversion between the main combustion layer, the complete combustion layer, and the stationary combustion zone.

[0011] According to the above technical solution, the flap-type complete combustion device receives the basically burned-out sludge that falls after being separated from the staggered mechanical grate, and high-temperature air passes through the device to make the sludge continue to burn completely.

[0012] According to the above technical solution, the flap-type complete combustion device is driven by a hydraulic piston to flip the flap-type complete combustion device, so that the ash and slag that have achieved the preset heat reduction fall down.

[0013] According to the above technical solution, the lower ash pipe of the flip-type complete combustion device discharges the ash and slag that fall from the flip-type complete combustion device into the ash cooling water tank.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: 1. This utility model can well adapt to sludge with organic components, such as sewage sludge from urban sewage treatment plants and industrial sludge from industrial wastewater treatment plants, which have complex composition, no sorting, high moisture content and low calorific value.

[0015] 2. This utility model has a simple structure and good durability, is easy to maintain, has few failures, and is conducive to long-term stable operation.

[0016] 3. This utility model can effectively promote the complete combustion of sludge, and the sludge is made to float and loosen by combustion air to increase the probability of air contact with sludge. It can also prevent combustion air from short-circuiting, avoid the grate from being burned by high temperature, and ensure good flame diffusion. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a structural diagram of a vertical sludge incinerator based on sludge incineration according to this utility model. Figure 2 This is a diagram of the staggered grate structure of a vertical sludge incinerator based on sludge incineration according to this utility model. Figure 3 This utility model relates to a sludge incinerator ash emission cycle diagram based on sludge incineration. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a vertical mechanical grate sludge incinerator, including an interlaced forked mechanical grate 1, a hydraulic piston 2 for the interlaced forked grate, a flap-type complete combustion device 3, a hydraulic piston 4 for the flap-type complete combustion device, and a lower ash pipe 5 for the flap-type complete combustion device; the sludge moves vertically within the furnace body, and complete combustion is achieved through the synergistic action of the above components. The interlaced forked mechanical grate 1 is arranged vertically on both sides of the furnace body, and its movement can agitate the sludge to enhance contact with the combustion air. The interlaced forked mechanical grate 1 is made of high-temperature resistant, wear-resistant, and corrosion-resistant cast steel. The dried sludge on it is divided into a main combustion layer, a complete combustion layer, and a stationary combustion zone from top to bottom, and the layers are switched periodically with the opening and closing of the grate. The combustion air flows from the interlaced forked grate... The lower part of the mechanical grate 1 rises through the gaps between the grates. The pressurized combustion air causes the sludge to float and loosen, increasing the contact probability between the air and the sludge. The staggered grate is driven by a hydraulic piston 2 to periodically open and close the staggered mechanical grate 1, realizing the vertical movement of the sludge and the conversion between the main combustion layer, the complete combustion layer, and the stationary combustion zone. The flip-plate complete combustion device 3 receives the basically burned-out sludge that falls after the staggered mechanical grate 1 separates. High-temperature air passes through this device to continue the complete combustion of the sludge. The flip-plate complete combustion device is driven by a hydraulic piston 4 to flip the flip-plate complete combustion device 3, causing the ash residue that has reached the preset heat reduction to fall. The ash pipe 5 of the flip-plate complete combustion device discharges the ash residue that has fallen from the flip-plate complete combustion device 3 to the ash cooling water tank.

[0020] Working principle: The dried sludge slides from the inlet onto the staggered mechanical grate 1. The high-temperature air below the grate 1 rises through the gaps between the grates, and the pressurized air causes the sludge to float and loosen, thus enhancing combustion. The staggered grate is driven by a hydraulic piston 2 to periodically open and close the grate 1, causing the sludge to move vertically. The dried sludge on it is divided into a main combustion layer, a complete combustion layer, and a stationary combustion zone from top to bottom, and the layers are switched. The high-temperature air passes through each layer for combustion. When the sludge in the complete combustion layer is basically burned out, the grate 1 separates to both sides, and the sludge falls into the flapper-type complete combustion device 3. The high-temperature air continues to promote the complete combustion of the sludge here. After the preset heat loss is achieved, the flapper-type complete combustion device is driven by a hydraulic piston 4 to flip the device 3. The burned ash is discharged into the ash cooling water tank through the lower ash pipe 5 of the flapper-type complete combustion device.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical sludge incinerator based on sludge incineration, characterized in that: It includes an interlaced fork mechanical grate (1), an interlaced fork grate hydraulic piston (2), a flap-type complete combustion device (3), a flap-type complete combustion device hydraulic piston (4), and a flap-type complete combustion device ash pipe (5); the sludge moves vertically in the furnace body and complete combustion is achieved through the synergistic action of the above components.

2. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The staggered fork-shaped mechanical grate (1) is arranged vertically on both sides of the furnace body, and can turn over the sludge during movement to enhance the contact with the combustion air.

3. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The staggered mechanical grate (1) is made of high temperature resistant, wear resistant and corrosion resistant cast steel material. The dried sludge on it is divided into a main combustion layer, a complete combustion layer and a stationary combustion zone from top to bottom, and the layers are switched between them as the grate is opened and closed periodically.

4. A vertical sludge incinerator based on sludge incineration according to claim 2, characterized in that: The combustion air rises from the bottom of the interlaced mechanical grate (1) through the gap between the grates. The pressurized combustion air can make the sludge float and loosen, increasing the probability of contact between the air and the sludge.

5. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The staggered fork grate is driven by a hydraulic piston (2) to periodically open and close the staggered fork mechanical grate (1), thereby realizing the vertical movement of sludge and the conversion between the main combustion layer, the complete combustion layer, and the stationary combustion zone.

6. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The flap-type complete combustion device (3) receives the basically burnt sludge that falls after being separated from the staggered mechanical grate (1), and high-temperature air passes through the device to make the sludge continue to burn completely.

7. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The flap-type complete combustion device is driven by a hydraulic piston (4) to flip the flap-type complete combustion device (3) so that the ash and slag that have achieved the preset heat reduction fall down.

8. A vertical sludge incinerator based on sludge incineration according to claim 1, characterized in that: The ash pipe (5) of the flip-type complete combustion device discharges the ash and slag that fall from the flip-type complete combustion device (3) into the ash cooling water tank.

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