CN216095538U - High-temperature oxidation chamber of thermal desorption equipment - Google Patents
High-temperature oxidation chamber of thermal desorption equipment Download PDFInfo
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- CN216095538U CN216095538U CN202122433935.7U CN202122433935U CN216095538U CN 216095538 U CN216095538 U CN 216095538U CN 202122433935 U CN202122433935 U CN 202122433935U CN 216095538 U CN216095538 U CN 216095538U
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Abstract
The utility model relates to the technical field of polluted soil remediation, and discloses a high-temperature oxidation chamber of thermal desorption equipment, which comprises an air inlet (6), a combustor (5), a combustion chamber (4), an ash outlet (8), an air outlet (9), an emergency discharge outlet (7) and a heat insulation layer arranged in the combustion chamber (4), wherein the heat insulation layer comprises a fireproof material layer (1) which is arranged vertically to the inner wall of the combustion chamber (4) and a high-temperature protection layer which is far away from the inner wall of the combustion chamber (4), the fireproof material layer (1) is arranged on the inner wall of the combustion chamber (4), the high-temperature protection layer is coated on the surface of the fireproof material layer, the heat insulation layer can be transferred and reused along with the high-temperature oxidation chamber of the thermal desorption equipment, the high-temperature oxidation chamber of the thermal desorption equipment has excellent fire resistance, low heat conductivity and high light weight and strength, good durability and strong adaptability, and can be used for multiple transition without crushing a heat insulation layer.
Description
Technical Field
The utility model relates to the technical field of contaminated soil remediation, in particular to a high-temperature oxidation chamber of thermal desorption equipment.
Background
There are many large-scale organic pollution plots in China. In the process of repairing and treating large organic polluted plots, direct thermal desorption equipment with large treatment capacity is indispensable equipment, and a high-temperature oxidation chamber is one of indispensable equipment of the direct thermal desorption equipment and is key equipment for treating tail gas of the thermal desorption equipment to reach the standard.
If the thermal desorption equipment needs to continuously and stably operate, the tail gas treatment reaches the standard, which is a precondition. In order to ensure that the thermal desorption tail gas reaches the standard and is discharged, the temperature of the high-temperature oxidation chamber must be stabilized between 900 ℃ and 1100 ℃, and the shell of the high-temperature oxidation chamber must be prevented from deformation and melting due to the influence of the temperature by heat insulation and heat preservation measures, so the heat insulation and heat preservation measures must be carried out inside the high-temperature oxidation chamber.
The traditional heat insulation measures (adopting refractory castable) are complex in process, namely welding nails on a shell in advance, winding adhesive tapes on the nails, then manufacturing a mould, stirring the castable and finally pouring. The drying oven is required to dry water after each construction, the castable can be used after being reinforced, the weight is too large after the construction, the transportation must be broken and then the construction must be carried out, the construction needs to be carried out again after the next use, the cost is increased, and manpower and material resources are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the heat insulation layer in the prior art is too heavy to be directly transported together with a high-temperature oxidation chamber in a transition way, and the heat insulation layer is crushed to transport the high-temperature oxidation chamber; the thermal insulation layer is broken and cannot be reused after transition, a new thermal insulation layer needs to be poured again, and manpower, material resources and financial resources are wasted, so that the thermal desorption equipment high-temperature oxidation chamber has the advantages of being excellent in fire resistance, low in heat conductivity coefficient, light in weight, high in strength, good in durability and strong in adaptability, the thermal insulation layer can be continuously used along with the thermal desorption equipment high-temperature oxidation chamber for transition for many times without breaking, and the like.
In order to achieve the purpose, the utility model provides a high-temperature oxidation chamber of thermal desorption equipment, which comprises an air inlet, a combustor, a combustion chamber, an ash outlet, an air outlet, an emergency discharge port and a heat insulation layer arranged inside the combustion chamber, wherein the heat insulation layer comprises a fireproof material layer which is arranged perpendicular to the inner wall of the combustion chamber and a high-temperature protection layer which is far away from the inner wall of the combustion chamber, the fireproof material layer is arranged on the inner wall of the combustion chamber of the high-temperature oxidation chamber of the thermal desorption equipment, the high-temperature protection layer is coated on the surface of the fireproof material layer, and the heat insulation layer can be transferred along with the high-temperature oxidation chamber of the thermal desorption equipment and reused.
Optionally, the fireproof material layer is a high-alumina calcium silicate board layer formed by combining high-alumina calcium silicate boards.
Optionally, the calcium high aluminosilicate board has an aluminum content greater than 65%.
Optionally, the high alumino calcium silicate board is fixed on the inner wall of the combustion chamber by a high temperature adhesive.
Optionally, the high temperature binder is refractory mortar.
Optionally, the thickness of the high temperature protection layer is 8mm-15 mm.
Optionally, the high-temperature protective layer is a high-temperature thermal protective coating layer.
Through the technical scheme, the novel high-strength high-temperature-resistant steel plate has the characteristics of excellent fire resistance, low heat conductivity coefficient, light weight, high strength, good durability, strong adaptability, capability of being used in multiple transition without crushing, and the like.
Drawings
Fig. 1 is a sectional view of a combustion chamber of a high-temperature oxidation chamber of a thermal desorption apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a high-temperature oxidation chamber of thermal desorption equipment in an embodiment of the utility model.
Description of the reference numerals
1 fireproof material layer 2 high-temperature protective layer
3 high temperature binder 4 combustion chamber
5 air inlet of combustor 6
7 emergency discharge outlet 8 ash outlet
9 air outlet 10 emergency discharge valve
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and "upper" and "lower" generally refer to upper and lower as shown in the drawings; "inner" and "outer" generally refer to the inner and outer contours of the respective components themselves; when the absolute position of the object being described changes, the relative positional relationship may change. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. And therefore should not be construed as limiting the utility model.
In order to achieve the purpose, the utility model provides a high-temperature oxidation chamber (shown in figure 2) of thermal desorption equipment, which comprises an air inlet 6, a burner 5, a combustion chamber 4, an ash outlet 8, an air outlet 9, an emergency discharge port 7 and a heat-insulating layer arranged inside the combustion chamber 4. The waste gas of the rotary kiln treated by the high-temperature oxidation chamber of the thermal desorption equipment enters the combustion chamber 4 through the inlet air 6, the temperature field generated by the combustor 5 enables the temperature of the combustion chamber 4 to be kept at 900-. If the emergency release valve 10 is opened by the pressure difference, the gas in the combustion chamber 4 is released from the emergency release port 7. Since the combustion chamber 4 is in the high temperature environment of 900-. The traditional heat insulation method (refractory castable) is that a nail is welded on a shell, an adhesive tape is wound on the nail, then a mould is made, then the castable is stirred, and finally a heat insulation layer is poured. The drying oven is required to dry water after each construction, the castable can be used after being reinforced, the weight is too large after the construction, the transportation must be broken and then the construction must be carried out, the construction needs to be carried out again after the next use, the cost is increased, and manpower and material resources are wasted.
The heat insulation layer of the high-temperature oxidation chamber of the thermal desorption equipment comprises a fireproof material layer 1 which is arranged perpendicular to the inner wall of a combustion chamber 4 and a high-temperature protection layer 2 (shown in an attached drawing 1) which is far away from the inner wall of the combustion chamber 4, wherein the fireproof material layer 1 is arranged on the inner wall of the combustion chamber 4, the high-temperature protection layer 2 is coated on the surface of the fireproof material layer 1, and the heat insulation layer can be transferred together with the high-temperature oxidation chamber of the thermal desorption equipment and reused. The heat insulation layer can be transferred along with the high-temperature oxidation chamber of the thermal desorption equipment without being crushed, and can be continuously used next time, and can be transferred for use for many times without being crushed; the method is convenient and quick, and the use efficiency of thermal desorption equipment is improved; the manpower, financial, and material resources are saved, and the cost is greatly saved.
The cross-section of the combustion chamber 4 of one embodiment in fig. 1 is circular, but other cross-sectional shapes are possible.
Preferably, the fireproof material layer 1 is a high-alumina calcium silicate board layer formed by combining high-alumina calcium silicate boards; the high-alumina calcium silicate board has good fireproof property, can not burn and can not generate toxic smoke; the strength is high, and the material is not easy to damage and break; the size is stable, and the wet expansion and dry shrinkage rate of the plate are easy to control in the most ideal range; the service life is long, the performance is stable, the acid and alkali resistance is realized, the corrosion is not easy to occur, and the ultra-long service life can be ensured; excellent fire resistance, low thermal conductivity, light weight, high strength, good durability and strong adaptability, and the high-alumina calcium silicate board layer also has the same characteristics.
Specifically, the high-aluminum calcium silicate board has an aluminum content of more than 65% and better fireproof performance.
Preferably, a calcium silicate plate containing more than 65% of aluminum is adopted, the specification is 200mm by 150mm by 60mm, and the high temperature resistance is more than 1300 ℃.
Specifically, the high-alumina calcium silicate board is fixed to the inner wall of the combustion chamber 4 by a high-temperature adhesive 3 (see fig. 1).
Preferably, the high-temperature adhesive 3 is adopted to directly build the high-aluminum calcium silicate board in the combustion chamber 4 and the pipeline shell, so that the high-aluminum calcium silicate board can be firmly arranged on the inner wall of the combustion chamber 4, the high-aluminum calcium silicate board is prevented from falling off to reduce the fireproof effect, the fireproof material layer 1 is formed, and the fireproof effect is achieved.
Preferably, the high-temperature adhesive 3 is refractory mortar, and ceramic bonding formed at high temperature has high strength, good plasticity and convenient construction; the adhesive strength is high, and the corrosion resistance is strong; the refractoriness is higher and can reach 1650 +/-50 ℃; the slag invasion resistance is good; the high-alumina calcium silicate board can be better adhered to the inner wall of the combustion chamber 4.
The high-alumina calcium silicate board is directly built in the combustion chamber and the pipeline shell by adopting the fire clay, and can be firmly arranged on the inner wall of the combustion chamber 4, so that the high-alumina calcium silicate board is prevented from falling off to reduce the fireproof effect.
Specifically, the thickness of the high-temperature protection layer 2 is 8mm-15 mm.
Preferably, the thickness of the high-temperature protection layer 2 is 10mm, and the high-temperature resistance of the high-temperature protection layer 1 is more than 1600 ℃.
Specifically, the high-temperature protective layer 2 is a high-temperature thermal protective coating layer.
Preferably, the high-temperature protective layer 2 is a high-temperature thermal protective coating layer (containing alumina fiber and refractory filler), the heat insulation layer is formed by directly building a high-alumina calcium silicate board in a combustion chamber 4 and a pipeline shell by using a high-temperature adhesive 3 (such as refractory clay), then coating 10mm of high-temperature thermal protective coating (containing alumina fiber and refractory filler) on the surface of the high-alumina calcium silicate board to form the high-temperature protective layer 2, and after the high-alumina calcium silicate board is built and the high-temperature protective layer 2 is coated, ventilating at normal temperature to naturally air-dry the high-temperature protective layer for 3-4 days.
The heat insulation layer can effectively isolate the damage and influence of high temperature on the shell of the high-temperature oxidation chamber and the pipeline shell of the thermal desorption equipment, thereby ensuring the normal operation of the equipment and avoiding the occurrence of safety accidents. The heat insulation layer not only solves the problem that the equipment shell is damaged by high temperature, but also reduces the weight of the equipment by 7 times compared with the traditional method, reduces the cost by 10 times, is more convenient to transport, can be repeatedly used for many times, is more practical, more economic and more convenient to transport compared with the traditional heat insulation method, and is simpler and more convenient to construct.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (7)
1. The high-temperature oxidation chamber of the thermal desorption equipment comprises an air inlet (6), a combustor (5), a combustion chamber (4), an ash outlet (8), an air outlet (9), an emergency discharge outlet (7) and a heat insulation layer arranged inside the combustion chamber (4), and is characterized in that the heat insulation layer comprises a fireproof material layer (1) which is perpendicular to the inner wall of the combustion chamber (4) and is arranged in a row and a high-temperature protection layer (2) which is far away from the inner wall of the combustion chamber (4), the fireproof material layer (1) is arranged on the inner wall of the combustion chamber (4), the high-temperature protection layer (2) is coated on the surface of the fireproof material layer, and the heat insulation layer can be transferred together with the high-temperature oxidation chamber of the thermal desorption equipment and reused.
2. The thermal desorption equipment high-temperature oxidation chamber according to the claim 1, wherein the fireproof material layer (1) is a high-alumina calcium silicate board layer formed by combining high-alumina calcium silicate boards.
3. The thermal desorption apparatus high temperature oxidation chamber of claim 2, wherein the high alumina calcium silicate board has an aluminum content of greater than 65%.
4. The thermal desorption apparatus high temperature oxidation chamber according to claim 2, wherein the high alumina calcium silicate plate is fixed on the inner wall of the combustion chamber (4) by a high temperature adhesive (3).
5. The thermal desorption apparatus high temperature oxidation chamber according to claim 4, wherein the high temperature binder (3) is refractory mortar.
6. The thermal desorption apparatus high-temperature oxidation chamber according to claim 1, wherein the thickness of the high-temperature protection layer (2) is 8mm-15 mm.
7. The thermal desorption equipment high-temperature oxidation chamber according to claim 1, wherein the high-temperature protection layer (2) is a high-temperature thermal protection coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433935.7U CN216095538U (en) | 2021-10-09 | 2021-10-09 | High-temperature oxidation chamber of thermal desorption equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433935.7U CN216095538U (en) | 2021-10-09 | 2021-10-09 | High-temperature oxidation chamber of thermal desorption equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216095538U true CN216095538U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122433935.7U Active CN216095538U (en) | 2021-10-09 | 2021-10-09 | High-temperature oxidation chamber of thermal desorption equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216095538U (en) |
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2021
- 2021-10-09 CN CN202122433935.7U patent/CN216095538U/en active Active
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