Unit alternate smoldering equipment

Abstract

The utility model belongs to the field of environmental restoration, and relates to unit alternate smoldering equipment which comprises a hydraulic elevator, a smoldering alternate unit module, a gas collecting hood and a heating and ventilating base, the smoldering alternation unit module comprises a plurality of groups of smoldering alternation units which are sequentially superposed from top to bottom; the gas collecting hood and the smoldering alternating unit module are sequentially arranged on the heating and ventilating base from top to bottom; and the hydraulic elevator is connected with a smoldering alternation unit in the smoldering alternation unit module and drives the smoldering alternation unit to carry out lifting operation. The utility model provides unit alternate smoldering equipment capable of saving energy consumption in a smoldering starting link.

Description

Technical Field

[0001] The utility model belongs to the field of environmental restoration, and relates to a smoldering device, in particular to a unit rotation type smoldering device for harmlessly treating soil polluted by organic matter and oily sludge in the process of smoldering self-sustaining restoration. Background Art

[0002] At present, smoldering technology is used at home and abroad to treat soil and oily sludge contaminated by organic matter, and has achieved good remediation results. Smoldering is a flameless exothermic oxidation reaction that can be self-sustaining under appropriate conditions. At present, smoldering technology has been successfully applied to the thermal treatment of contaminated soil. During the smoldering process, many difficult-to-degrade organic liquid pollutants are destroyed.

[0003] The smoldering self-sustaining process is considered to be a low heat loss repair process, and smoldering is considered by industry insiders to have the potential for green energy saving. However, due to the speed of heat transfer of soil and sludge itself, the start-up process of smoldering is not easy. Whether it is started by electric heating tube heating, gas ignition or contact with burned coke, it takes a long time and consumes a lot of energy. At present, most smoldering equipment is in the form of sequential batch type. One common feature of them is that each batch of materials needs to be started separately. When the material loading height in the sequential batch equipment is low, the start-up cost per unit material is very high. Existing engineering cases show that when using electric heating tube heating to start, the start-up cost of smoldering per unit weight of material is about 30 to 50 yuan. It can be seen that if continuous smoldering can be achieved at one start, the operating cost of smoldering will be greatly reduced, thereby achieving the dual effects of energy saving and cost reduction. Therefore, it is urgent to explore a unit rotation smoldering equipment that can start continuous smoldering at one start. Utility Model Content

[0004] In order to solve the above technical problems existing in the background technology, the utility model provides a unit rotation type smoldering equipment which can save energy consumption in the smoldering starting link.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a unit rotation smouldering equipment, which includes a hydraulic lift, a smouldering rotation unit module, an air collecting hood and a heating and ventilation base; the smouldering rotation unit module includes a plurality of groups of smouldering rotation units stacked in sequence from top to bottom; the air collecting hood and the smouldering rotation unit module are arranged in sequence from top to bottom on the heating and ventilation base; the hydraulic lift is connected to the smouldering rotation unit in the smouldering rotation unit module and drives the smouldering rotation unit to perform lifting operations.

[0006] Preferably, the smoldering rotation units used in the present invention are 3 to 5 groups.

[0007] Preferably, the hydraulic lift used in the utility model includes a gantry support, a hydraulic system and a lifting support; the gantry support is vertically arranged on the periphery of the smoldering rotation unit module; the lifting support is arranged on the gantry support; the hydraulic system is connected to the lifting support and drives the smoldering rotation unit to be freely lifted and lowered along the axial direction of the gantry support through the lifting support.

[0008] Preferably, the portal support adopted in the utility model comprises a left column and a right column arranged in parallel; a smoldering reaction zone is formed between the left column and the right column; and the smoldering rotation unit module is placed in the smoldering reaction zone.

[0009] Preferably, the smoldering reaction zone adopted in the utility model includes a preheating zone, a smoldering zone and a heat storage zone from top to bottom; the preheating zone, the smoldering zone and the heat storage zone are all superimposed with smoldering rotation units.

[0010] Preferably, the smoldering reaction zone used in the present invention further includes a cooling zone disposed at the bottom of the heat storage zone; a smoldering rotation unit is provided in the cooling zone.

[0011] Preferably, the smoldering rotation unit adopted in the utility model includes a high-temperature resistant frame structure that is cylindrical as a whole; the bottom of the high-temperature resistant frame structure is paved with a high-temperature resistant metal woven mesh; the side walls of the high-temperature resistant frame structure are provided with seat ears; the hydraulic lift drives the high-temperature resistant frame structure to perform lifting operations through the seat ears.

[0012] Preferably, the upper surface of the high temperature resistant frame structure adopted by the utility model is provided with an annular ridge; the bottom of the high temperature resistant frame structure is provided with an annular groove matching the annular ridge; when the multiple groups of smoldering rotation units are stacked from top to bottom, the upper and lower adjacent high temperature resistant frame structures are connected by the annular ridge and the annular groove.

[0013] Preferably, asbestos packing is arranged between the annular convex ridge and the shaped groove adopted in the utility model.

[0014] Preferably, the heating and ventilation base adopted in the utility model includes an electric heating tube, an air supply duct and a base shell; the base shell is placed at the bottom of the smoldering rotation unit module; the air supply duct and the electric heating tube extend from the base shell into the heating and ventilation base; the electric heating tube is placed on the upper part of the air supply duct.

[0015] The advantages of the utility model are:

[0016] The utility model provides a unit rotation type smoldering equipment, including a hydraulic lift, a smoldering rotation unit module, an air collecting hood and a heating and ventilation base; the smoldering rotation unit module includes a plurality of groups of smoldering rotation units stacked in sequence from top to bottom; the air collecting hood and the smoldering rotation unit module are arranged in sequence from top to bottom on the heating and ventilation base; the hydraulic lift is connected to the smoldering rotation unit in the smoldering rotation unit module and drives the smoldering rotation unit to perform lifting operations. The heating and ventilation base contains an electric heating pipe and an air supply duct. The smoldering rotation unit module can, with the assistance of the hydraulic lift and the external lifting and transporting equipment, realize the withdrawal of the lower module from the discharge of materials and the insertion of the upper rotation unit module loaded with smoldering materials according to the smoldering advancement situation. This equipment can realize the process of continuous smoldering after one ignition, save the energy consumption of the smoldering start-up link, and has significant economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the unit rotation type smoldering equipment provided by the utility model;

[0018] Reference numerals:

[0019] 100-hydraulic lift; 101-hydraulic system; 102-lifting support; 103-gantry support; 200-heating and ventilation base; 201-air supply duct; 202-electric heating pipe; 203-base shell; 300-smoldering rotation unit module; 301-high temperature resistant frame structure; 302-seat ear; 303-high temperature resistant metal woven mesh; 400-gas collecting hood; 500-smoldering reaction zone; 501-cooling zone; 502-heat storage zone; 503-smoldering zone; 504-preheating zone. DETAILED DESCRIPTION

[0020] See also Figure 1 The utility model provides a unit rotation smoldering equipment, including a hydraulic lift 100, a smoldering rotation unit module 300, an air collecting hood 400 and a heating and ventilation base 200; the smoldering rotation unit module 300 includes a plurality of groups of smoldering rotation units stacked in sequence from top to bottom; the air collecting hood 400 and the smoldering rotation unit module 300 are arranged in sequence from top to bottom on the heating and ventilation base 200; the hydraulic lift 100 is connected to the smoldering rotation unit in the smoldering rotation unit module 300 and drives the smoldering rotation unit to perform lifting operations.

[0021] The smoldering rotation units adopted in the present invention are 3 to 5 groups. For example, 4 groups are the most preferred method.

[0022] The hydraulic lift 100 includes a gantry support 103, a hydraulic system 101 and a lifting support 102; the gantry support 103 is vertically arranged around the smoldering alternating unit module 300; the lifting support 102 is arranged on the gantry support 103; the hydraulic system 101 is connected to the lifting support 102 and drives the smoldering alternating unit to freely rise and fall along the axial direction of the gantry support 103 through the lifting support 102. The gantry support 103 includes a left column and a right column arranged in parallel; a smoldering reaction zone 500 is formed between the left column and the right column; and the smoldering alternating unit module 300 is placed in the smoldering reaction zone 500.

[0023] The smoldering reaction zone 500 includes a preheating zone 504, a smoldering zone 503, a heat storage zone 502 and a cooling zone 501 from top to bottom; the preheating zone 504, the smoldering zone 503, the heat storage zone 502 and the cooling zone 501 are all superimposed with smoldering rotation units.

[0024] The smoldering rotation unit includes a high temperature resistant frame structure 301 that is cylindrical in shape as a whole; a high temperature resistant metal woven mesh 303 is laid on the bottom of the high temperature resistant frame structure 301; a seat ear 302 is provided on the side wall of the high temperature resistant frame structure 301; and the hydraulic lift 100 drives the high temperature resistant frame structure 301 to perform lifting operations through the seat ear 302. Preferably, in order to enhance the connection stability of the upper and lower adjacent high temperature resistant frame structures 301, the utility model is provided with an annular ridge on the upper surface of the high temperature resistant frame structure 301; an annular groove matching the annular ridge is provided at the bottom of the high temperature resistant frame structure 301; when multiple groups of smoldering rotation units are stacked from top to bottom, the upper and lower adjacent high temperature resistant frame structures 301 are connected through the annular ridge and the annular groove. In order to achieve a better sealing effect, asbestos packing is provided between the annular ridge and the annular groove of the utility model.

[0025] The heating and ventilation base 200 includes an electric heating tube 202, an air supply duct 201 and a base shell 203; the base shell 203 is placed at the bottom of the smoldering rotation unit module 300; the air supply duct 201 and the electric heating tube 202 extend from the base shell 203 into the heating and ventilation base 200; the electric heating tube 202 is placed on the upper part of the air supply duct 201.

[0026] The technical solution provided by the present invention is described in detail below based on the case where there are four groups of smoldering rotation units.

[0027] See also Figure 1The utility model provides a unit-rotating smoldering equipment, which includes, from bottom to top, a heating and ventilation base 200, a smoldering rotation unit module 300 (formed by 4 layers of high-temperature resistant frame structures 301 stacked in sequence from top to bottom) and an air collecting hood 400. The two sides of the heating and ventilation base 200 are hydraulic lifts 100. The smoldering rotation unit modules 300 are stacked on the heating and ventilation base 200, and are sealed with asbestos packings through annular grooves. The air collecting hood 400 is installed at the top of the unit-rotating smoldering equipment. The upper end of the air collecting hood 400 has an exhaust port connected to the exhaust gas treatment equipment, and is suspended at the top of the smoldering device by a sling, and can be lifted up and down by the sling. The lifting support 102 can slide freely to the bottom of the seat ear 302 of any high-temperature resistant frame structure 301 as needed, and the lifting operation is performed by operating the hydraulic system 101.

[0028] The utility model is in specific operation: During the preparation stage of the smoldering device, the high-temperature resistant metal woven mesh 303 is first loaded into the high-temperature resistant frame structure 301 in each layer of the smoldering rotation unit, and then filled with the material to be repaired, and the heating and ventilation base 200 is fixed to the bottom layer. Multiple groups of smoldering rotation units are stacked on the heating and ventilation base 200 in sequence through external armor equipment, and finally the air collecting hood 400 is installed, and the air supply duct 201 and the electric heating tube 202 are connected. After preparation, turn on the external induced draft fan to capture the exhaust gas through the air collecting hood 400, energize the electric heating tube 202, and supply air to the air supply duct 201 through the external air supply fan. After the smoldering starts, the smoldering reaction gradually advances upward, and the material state in the smoldering rotation unit module 300 is respectively in the cooling zone 501, the heat storage zone 502, the smoldering zone 503 and the preheating zone 504 from bottom to top. Figure 1 As shown, at this time, the lifting support 102 of the hydraulic lift 100 is moved to the base ear 302 of the high temperature resistant frame structure 301 in the heat storage area 502, the air supply duct 201 is closed, and the hydraulic system 101 is started to lift about 10 cm, and the high temperature resistant frame structure 301 in the cooling area 501 is moved out for unloading through the external mecha equipment, and at the same time, the hydraulic system 101 is started to lower the upper three layers of the high temperature resistant frame structure 301 to the heating and ventilation base 200, and the high temperature resistant frame structure 301 with new materials is placed on the top of the preheating area 504 again. After the operation is completed, the air collection hood 400 is installed, and the air supply duct 201 is opened again for air supply. This reciprocating process can ensure that the heating is started once and the cycle continues to smolder.

Claims

1. A unit rotation type smoldering equipment, characterized in that: The unit rotation smoldering equipment comprises a hydraulic lift (100), a smoldering rotation unit module (300), an air collecting hood (400) and a heating and ventilation base (200); the smoldering rotation unit module (300) comprises a plurality of groups of smoldering rotation units stacked in sequence from top to bottom; the air collecting hood (400) and the smoldering rotation unit module (300) are arranged in sequence from top to bottom on the heating and ventilation base (200); the hydraulic lift (100) is connected to the smoldering rotation unit in the smoldering rotation unit module (300) and drives the smoldering rotation unit to perform lifting operations.

2. The unit rotation smoldering equipment according to claim 1, characterized in that: The smoldering rotation units are 3 to 5 groups.

3. The unit rotation type smoldering equipment according to claim 2, characterized in that: The hydraulic lift (100) comprises a gantry support (103), a hydraulic system (101) and a lifting support (102); the gantry support (103) is vertically arranged on the periphery of the smoldering rotation unit module (300); the lifting support (102) is arranged on the gantry support (103); the hydraulic system (101) is connected to the lifting support (102) and drives the smoldering rotation unit to be freely lifted and lowered along the axial direction of the gantry support (103) through the lifting support (102).

4. The unit rotation type smoldering equipment according to claim 3, characterized in that: The portal support (103) comprises a left column and a right column arranged in parallel; a smoldering reaction zone (500) is formed between the left column and the right column; and the smoldering rotation unit module (300) is placed in the smoldering reaction zone (500).

5. The unit rotation type smoldering equipment according to claim 4, characterized in that: The smoldering reaction zone (500) comprises, from top to bottom, a preheating zone (504), a smoldering zone (503), and a heat storage zone (502); smoldering rotation units are superimposed in the preheating zone (504), the smoldering zone (503), and the heat storage zone (502).

6. The unit rotation type smoldering equipment according to claim 5, characterized in that: The smoldering reaction zone (500) further comprises a cooling zone (501) disposed at the bottom of the heat storage zone (502); a smoldering rotation unit is arranged in the cooling zone.

7. The unit rotation smoldering equipment according to any one of claims 1 to 6, characterized in that: The smoldering rotation unit comprises a high-temperature resistant frame structure (301) that is cylindrical in shape as a whole; a high-temperature resistant metal woven mesh (303) is laid on the bottom of the high-temperature resistant frame structure (301); seat ears (302) are provided on the side walls of the high-temperature resistant frame structure (301); and the hydraulic lift (100) drives the high-temperature resistant frame structure (301) to perform lifting operations via the seat ears (302).

8. The unit rotation type smoldering equipment according to claim 7, characterized in that: The upper surface of the high temperature resistant frame structure (301) is provided with an annular ridge; the bottom of the high temperature resistant frame structure (301) is provided with an annular groove matching the annular ridge; when the multiple groups of smoldering rotation units are stacked from top to bottom, the upper and lower adjacent high temperature resistant frame structures (301) are connected via the annular ridge and the annular groove.

9. The unit rotation type smoldering equipment according to claim 8, characterized in that: Asbestos packing is arranged between the annular convex ridge and the shaped groove.

10. The unit rotation type smoldering equipment according to claim 9, characterized in that: The heating and ventilation base (200) comprises an electric heating tube (202), an air supply duct (201) and a base shell (203); the base shell (203) is placed at the bottom of the smoldering rotation unit module (300); the air supply duct (201) and the electric heating tube (202) extend from the base shell (203) into the heating and ventilation base (200); the electric heating tube (202) is placed on the upper part of the air supply duct (201).

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