CN112094016B - Pre-drying carbonization treatment method for sludge - Google Patents
Pre-drying carbonization treatment method for sludge Download PDFInfo
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- CN112094016B CN112094016B CN202010987789.XA CN202010987789A CN112094016B CN 112094016 B CN112094016 B CN 112094016B CN 202010987789 A CN202010987789 A CN 202010987789A CN 112094016 B CN112094016 B CN 112094016B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge pre-drying carbonization treatment method, relates to the technical field of sludge treatment, and solves the problems that the existing sludge drying carbonization method lacks a dialysis removal structure for water in sludge, the water stored in the sludge is difficult to be discharged and only can be evaporated by heating, so that the evaporation and drying process of the water is longer, and the drying use efficiency is reduced. The method for the preposed drying and carbonizing treatment of the sludge is completed by preposed drying and carbonizing treatment equipment of the sludge, so that the preposed drying and carbonizing treatment of the sludge is realized, and the method comprises the following steps: firstly, inserting the baffle plate through the electric push rod, sliding downwards to insert the baffle plate on the opening at the rear end of the drying box, then filling sludge into the drying box, continuing to slide downwards through the electric push rod after filling, inserting the baffle plate and enabling the left and right two rows of positioning square rods to be inserted downwards to abut against the inner wall of the bottom of the drying box, and then starting the motor and starting the electromagnetic valve on the gas distribution pipe to ignite.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a sludge pre-drying carbonization treatment method.
Background
Along with the popularization of sewage treatment facilities, the improvement of sewage treatment efficiency and the deepening of sewage treatment degree, the domestic municipal sludge yield is increased rapidly year by year, and the municipal sludge yield can reach 9000 ten thousand tons by 2020. Because the sludge treatment capacity of China is insufficient, the means is backward, a large amount of sludge is not treated in a standardized way, the stabilization harmless treatment rate is only 20 to 30 percent, a large amount of sludge is simply buried, a large amount of land resources are wasted, and the ecological environment is seriously threatened. The sludge has complex components, contains pathogenic microorganisms, parasitic ova, toxic and harmful heavy metals and a large amount of non-degradable substances, and easily causes secondary pollution to the environment if the sludge is not properly treated. According to the difference of sludge property and water content, five main technical routes are formed in China: deep dehydration and landfill; aerobic fermentation and land utilization; anaerobic digestion, drying and land utilization; deep dehydration, drying, incineration and recycling; deep dehydration, drying, carbonization and reutilization.
For example, patent No. CN201821422112.6 discloses a double-layer drum sludge carbonizing device, which relates to the technical field of sludge treatment devices and comprises a carbonizing system, a combustion system and a gas treatment system, wherein the carbonizing system comprises a drum-type carbonizing furnace, the front end of the drum-type carbonizing furnace is connected with a spiral conveying device and a feeding device, and the joint of the front end of the drum-type carbonizing furnace and the spiral conveying device is a feeding hole; drum-type retort is including heating furnace and rotary drum, and the rotary drum is arranged in to heating furnace cover, and the rotary drum includes the inner tube as drying drum and the urceolus as pyrolysis carbonization cylinder, and the inner tube can rotate with the urceolus syntropy with fast, establishes the inner tube lifting blade in the inner tube, establishes the urceolus lifting blade in the urceolus, and the inner tube front end is the feed inlet, rear end and the inside intercommunication of urceolus, and mud gets into the urceolus from the inner tube, and the urceolus bottom is established and is closed the wind discharge gate, and the material gets into the carbide from closing the wind discharge gate after the carbomorphism and stores the storehouse. The invention has the advantages of simple structure, uniform carbonization, high carbonization efficiency, short carbonization time and controllable operation cost.
Present sludge drying carbomorphism stirring part is mostly the installation of stewing, and it can only stir the mud on the aspect of fixed height, causes mud can not be by the stirring of fully comprehensive rolling, causes the homogeneity that is heated relatively poor, influences the drying efficiency that adds heat, and lacks the dialysis of moisture in the mud and get rid of the structure, and the moisture discharge difficulty of storing in the mud can only rely on the evaporation of heat, causes the evaporation drying process of moisture longer, and this has further reduced dry availability factor.
Disclosure of Invention
The invention aims to provide a sludge preposed drying carbonization treatment method, which aims to solve the problems that the prior art lacks a dialysis removal structure for water in sludge, the water stored in the sludge is difficult to be removed and only can be evaporated by heating, so that the evaporation and drying process of the water is longer, and the drying use efficiency is further reduced.
In order to achieve the purpose, the invention provides the following technical scheme:
a sludge preposed drying carbonization treatment method is completed by sludge preposed drying carbonization treatment equipment, so that sludge preposed drying carbonization treatment is realized, and the method comprises the following steps:
firstly, an insertion baffle plate penetrates through a sliding block and is inserted and blocked on an opening at the rear end of a drying box through an electric push rod, then sludge is filled into the drying box, after filling is finished, the insertion baffle plate continues to slide downwards through the electric push rod, a left row of positioning square rods and a right row of positioning square rods are downwards inserted and abutted on the inner wall of the bottom of the drying box, and then a motor is started and an electromagnetic valve on a gas distribution pipe is started for ignition;
the two crank slider mechanisms are formed by the two swing rods, the two insertion baffle plates and the positioning frame, the motor can rotate to drive the insertion baffle plates and the positioning frame to slide up and down in a reciprocating manner, the insertion baffle plates and the positioning frame can drive the four hollow rotating shafts and the four permeable pipes to slide up and down in a reciprocating manner, and the stirring tooth sheets can be used for rotationally stirring mud layers at different height positions, so that the mud is stirred more uniformly and fully and heated, the drying use efficiency is further improved, and meanwhile, the four permeable pipes can be used for dialyzing and draining the mud layers at different height positions, so that the mud is dialyzed more uniformly and thoroughly, and the drying efficiency of the mud is further improved;
after the water is evaporated completely, the positioning frame is separated from the drying box by lifting the insertion baffle plate and the positioning frame through the electric push rod, then the cover plate 4 is slid on the top end opening of the drying box 1 to start anaerobic heating of the sludge until the sludge is dried to form a carbon block, and finally the insertion baffle plate 5 is slid upwards to open to collect and unload the carbon block in the drying box 1;
the sludge preposed drying and carbonizing treatment equipment comprises a drying box and a cover plate, wherein the drying box comprises a hearth and T-shaped track strips, the whole drying box is of a rectangular structure, the bottom of the drying box is welded with the hearth corresponding to the shape of the drying box, the bottom of the hearth is provided with six ventilating grooves at equal intervals, and the bottom of the hearth is symmetrically hung and welded with the two T-shaped track strips; four electric push rods are symmetrically and vertically arranged at the front end and the rear end of the drying box; the electric push rod comprises an I-shaped support frame, the I-shaped support frame is arranged on the top end locking cross arm of the telescopic rod of the electric push rod at four positions, and a motor is fixedly locked at the right side position of the top end of the I-shaped support frame; the cover plate comprises forward-probing supporting plates, the cover plate is of a rectangular structure, two L-shaped supporting legs are symmetrically welded on the cover plate, a cross-bracing beam rod is welded between the middle sections of the two L-shaped supporting legs, two forward-probing supporting plates are symmetrically welded on the cross-bracing beam rod, and the head end vertical bending sections of the two forward-probing supporting plates are correspondingly matched with the two T-shaped track strip sliding sleeves; four hollow rotating shafts are arranged between the insertion baffle plate and the positioning frame in an inserting and inserting way at equal intervals, and a water permeable pipe is inserted and locked in each of the four hollow rotating shafts; a row of combustion pipes are welded on the left side wall of the hearth in a penetrating mode, a row of arc-shaped gas grooves are formed in the outer wall of the top end of each row of combustion pipes, the tops of the rows of combustion pipes are inserted into the hearth, and the tail ends of the backs of the rows of combustion pipes are welded and communicated with a cross-bracing gas distribution pipe; the middle air inlet period short pipe of the air distribution pipe is provided with an electromagnetic valve; the electric push rod further comprises positioning square rods, four positioning square rods are symmetrically welded at the bottoms of the left end and the right end of the I-shaped support frame in a hanging mode, and the left row of positioning square rods and the right row of positioning square rods can slide down along the I-shaped support frame to abut against the inner wall of the bottom of the drying box; the motor comprises a swing rod and a connecting rod, the left end section and the right end section of the motor rotating shaft are respectively sleeved with a swing rod, and the tail ends of the two swing rods are respectively rotatably connected with the connecting rod; the length of the inserting baffle plate is twice that of the positioning frame, and the whole positioning frame is formed by welding a top end cross beam rod and four vertical support rods arranged at the bottom; the inserting baffle plate slides downwards along the I-shaped support frame to penetrate through the rear end section of the side wall of the bottom of the drying box.
Preferably, the hollow rotating shaft comprises stirring blades and gears, six rows of penetrating grooves with equal intervals are formed in the hollow rotating shaft in an annular array, and the gears are sleeved on the rear end sections of the hollow rotating shaft; six stirring tooth plates are arranged and welded on the hollow rotating shaft in a surrounding manner, and the six stirring tooth plates are positioned in the space between the six rows of through grooves at intervals; the whole permeable pipe is formed by welding and combining six support thin shafts which are arranged in a surrounding way and a row of positioning rings together, and a layer of filter cloth covers and blocks permeable grooves which are formed among the positioning rings at intervals; the head end section of the water permeable pipe is provided with external threads and welded with a plum blossom knob.
Preferably, four rows of tooth grooves are correspondingly formed in the left and right of the lower half sections of the four positioning square rods on the right side, and the four rows of tooth grooves are correspondingly contacted and meshed with four gears; the tail end of the left connecting rod is correspondingly connected with the inserting block turning insert, and the tail end of the right connecting rod is correspondingly connected with the positioning frame in a rotating mode.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the water permeable pipe can dialyze and discharge the water in the sludge through the filter cloth on the water permeable pipe, so that the content of the water in the sludge can be rapidly reduced, the drying time of the sludge can be shortened, and the drying efficiency can be improved;
2. the inserting baffle plate and the positioning frame can drive the four hollow rotating shafts and the four permeable pipes to slide up and down back and forth, so that the stirring tooth sheets can rotate and stir the mud layers at different height positions, the mud is more uniformly and fully stirred and heated, the heating and drying efficiency is further improved, and meanwhile, the four permeable pipes can dialyze and drain the mud layers at different height positions, so that the mud is more uniformly and thoroughly dialyzed and drained, and the drying efficiency of the mud is further improved;
3. the power transmission through the right side four location square poles can interlock meshing order about the rotation of the hollow rotating shaft of four places at the in-process that the locating frame slided from top to bottom, and this has saved and has set up rotatory stirring power for the hollow rotating shaft of one row of department alone, make full use of the power of motor, has reduced power device's quantity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a back three-dimensional structure of the present invention;
FIG. 3 is a schematic bottom three-dimensional structure of the present invention;
FIG. 4 is a schematic view of the installation position of the hollow rotating shaft rotating plug of the present invention;
FIG. 5 is a schematic structural view of an I-shaped bracket of the present invention;
FIG. 6 is a schematic three-dimensional structure of the insertion baffle plate according to the present invention;
FIG. 7 is a schematic three-dimensional structure of the gas distribution pipe of the present invention;
FIG. 8 is a schematic view of the permeable pipe of the present invention;
in the figure: 1. a drying box; 101. a hearth; 102. a T-shaped track bar; 2. an electric push rod; 201. an I-shaped support frame; 202. positioning a square rod; 3. a motor; 301. a swing rod; 302. a connecting rod; 4. a cover plate; 401. a front stretching brace plate; 5. inserting a baffle plate; 6. a positioning frame; 7. a hollow rotating shaft; 701. stirring the toothed sheet; 702. a gear; 8. a water permeable pipe; 9. an air distribution pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes:
a sludge preposed drying carbonization treatment method is completed by sludge preposed drying carbonization treatment equipment, so that sludge preposed drying carbonization treatment is realized, and the method comprises the following steps:
firstly, the inserting baffle plate 5 penetrates through the electric push rod 2 to slide downwards and is inserted and blocked on the rear end opening of the drying box 1, then sludge is filled into the drying box 1, after filling is finished, the electric push rod 2 continues to slide downwards and insert the baffle plate 5, the left and right rows of positioning square rods 202 are inserted and abutted on the inner wall of the bottom of the drying box 1, and then the motor 3 is started and the electromagnetic valve on the air distribution pipe 9 is started to ignite;
the two connecting rods 302, the two swing rods 301, the two insertion baffle plates 5 and the positioning frame 6 jointly form a two-slider-crank mechanism, the motor 3 can rotate to drive the insertion baffle plates 5 and the positioning frame 6 to slide up and down in a reciprocating manner, the insertion baffle plates 5 and the positioning frame 6 can drive the four hollow rotating shafts 7 and the four permeable pipes 8 to slide up and down in a reciprocating manner, and therefore the stirring tooth sheets 701 can stir mud layers at different height positions in a rotating manner, the mud layers are stirred uniformly and sufficiently and heated, the drying use efficiency is further improved, meanwhile, the four permeable pipes 8 can perform dialysis drainage on the mud layers at different height positions, the mud layers are dialyzed more uniformly and thoroughly to remove water, and the drying efficiency of the mud is further improved;
after the water evaporation is completely used up, the electric push rod 2 ascends to insert the baffle plate 5 and the positioning frame 6, so that the positioning frame 6 is separated from the drying box 1, then the cover plate 4 is slid on the top end opening of the drying box 1 to start anaerobic heating of sludge until the sludge is dried to form a carbon block, and finally the baffle plate 5 is inserted to slide to open to collect and unload the carbon block in the drying box 1.
The sludge pre-drying carbonization treatment equipment comprises a drying box 1 and a cover plate 4, wherein the drying box 1 comprises a hearth 101 and T-shaped track strips 102, the whole drying box 1 is of a rectangular structure, the bottom of the drying box is welded with the hearth 101 with a position corresponding to the shape of the drying box, the bottom of the hearth 101 is provided with six ventilating grooves at equal intervals in a penetrating manner, and the bottom of the hearth 101 is symmetrically welded with the two T-shaped track strips 102 in a hanging manner; four electric push rods 2 are symmetrically and vertically arranged at the front end and the rear end of the drying box 1; the electric push rod 2 comprises an I-shaped support frame 201, one I-shaped support frame 201 is arranged on the top end locking cross arm of the telescopic rod of the electric push rod 2 at four positions, and a motor 3 is fixedly locked at the right side position of the top end of the I-shaped support frame 201; the cover plate 4 comprises a forward-probing supporting plate 401, the cover plate 4 is of a rectangular structure, two L-shaped supporting legs are symmetrically welded on the cover plate 4, a cross-bracing beam rod is welded between the middle sections of the two L-shaped supporting legs, two forward-probing supporting plates 401 are symmetrically welded on the cross-bracing beam rod, and the head end vertical turning sections of the two forward-probing supporting plates 401 are correspondingly matched with the two T-shaped track strips 102 in a sliding sleeve manner; four hollow rotating shafts 7 are arranged between the inserting baffle plate 5 and the positioning frame 6 in an inserting and inserting way at equal intervals, and a water permeable pipe 8 is inserted and locked in each of the four hollow rotating shafts 7; a row of combustion pipes are welded on the left side wall of the hearth 101 in a penetrating manner, a row of arc-shaped gas grooves are formed in the outer wall of the top end of each row of combustion pipes, the tops of the rows of combustion pipes are inserted into the hearth 101, and the tail ends of the backs of the rows of combustion pipes are welded and communicated with a cross-bracing gas distribution pipe 9; the middle air intake period short pipe of the air distribution pipe 9 is provided with an electromagnetic valve; the electric push rod 2 further comprises positioning square rods 202, the bottoms of the left end and the right end of the I-shaped support frame 201 are symmetrically welded with the four positioning square rods 202 in a hanging mode, the left row and the right row of positioning square rods 202 can slide downwards along the I-shaped support frame 201 to abut against the inner wall of the bottom of the drying box 1, and the left row and the right row of positioning square rods 202 have a limiting effect and can ensure that the inserting baffle plate 5 and the positioning frame 6 can directly slide up and down; the motor 3 comprises a swing rod 301 and a connecting rod 302, the swing rod 301 is sleeved on the left end section and the right end section of the rotating shaft of the motor 3, and the tail ends of the swing rods 301 are rotatably connected with the connecting rod 302; the hollow rotating shaft 7 comprises a stirring tooth sheet 701 and gears 702, six rows of penetrating grooves with equal intervals are formed in the hollow rotating shaft 7 in an annular array, and the gears 702 are sleeved on the rear end sections of the hollow rotating shaft 7; six stirring blades 701 are welded on the hollow rotating shaft 7 in a surrounding manner, and the six stirring blades 701 are positioned in the space between the six rows of through grooves at intervals.
Further, the length of the insertion baffle plate 5 is twice that of the positioning frame 6, and the whole positioning frame 6 is formed by welding a top end cross strut beam rod and four vertical strut rods arranged at the bottom together; the inserting baffle plate 5 slides downwards along the I-shaped support frame 201 to penetrate through the rear end section of the side wall of the bottom of the drying box 1, the inserting baffle plate 5 can block a rear end opening of the drying box 1, and the inserting baffle plate 5 can be controlled by four electric push rods 2 to be lifted, so that the drying box 1 is opened and closed, the trouble of manually pulling the switch to insert the baffle plate 5 is eliminated, and the drying box is labor-saving and convenient.
Furthermore, the whole permeable pipe 8 is formed by welding and combining six support thin shafts which are arranged in a surrounding way and a row of positioning rings together, and a layer of filter cloth covers and blocks permeable grooves which are formed among the positioning rings at intervals; the outer thread is seted up on the tip section of pipe 8 of permeating water and a plum blossom knob is welded, and the water content of pipe 8 of permeating water in through the filter cloth above that can be to mud is dialyzed and is discharged, and this content that can reduce moisture in the mud fast is favorable to reducing the drying time of mud, promotes drying efficiency.
Further, the right side is four places it has seted up four rows of tooth's grooves to correspond about being on the half lower section of location square bar 202, this four rows of tooth's grooves correspond with four gear 702 contact engagement, the in-process that slides about 6 at the locating frame through the power transmission of right side four locations location square bar 202 can interlock meshing order about four hollow rotating shaft 7 rotatoryly, this has saved and has set up rotary power for one row of hollow rotating shaft 7 alone, make full use of motor 3's power, power device's quantity has been reduced, be favorable to the controlgear cost.
Further, the tail end of the left connecting rod 302 is correspondingly connected with the inserting baffle plate 5 in a rotating and inserting manner, the tail end of the right connecting rod 302 is correspondingly connected with the positioning frame 6 in a rotating and inserting manner, the two connecting rods 302, the two swing rods 301, the two inserting baffle plates 5 and the positioning frame 6 jointly form a two-position slider-crank mechanism, and the motor 3 can rotate to drive the inserting baffle plate 5 and the positioning frame 6 to slide up and down in a reciprocating manner through the two-position mechanism.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. A sludge pre-drying carbonization treatment method is characterized in that: the method for the preposed drying and carbonizing treatment of the sludge is completed by preposed drying and carbonizing treatment equipment of the sludge, so that the preposed drying and carbonizing treatment of the sludge is realized, and the method comprises the following steps:
firstly, an insertion baffle plate penetrates through a sliding block and is inserted and blocked on an opening at the rear end of a drying box through an electric push rod, then sludge is filled into the drying box, after filling is finished, the insertion baffle plate continues to slide downwards through the electric push rod, a left row of positioning square rods and a right row of positioning square rods are downwards inserted and abutted on the inner wall of the bottom of the drying box, and then a motor is started and an electromagnetic valve on a gas distribution pipe is started for ignition;
the two crank slider mechanisms are formed by the two swing rods, the two insertion baffle plates and the positioning frame, the motor can rotate to drive the insertion baffle plates and the positioning frame to slide up and down in a reciprocating manner, the insertion baffle plates and the positioning frame can drive the four hollow rotating shafts and the four water permeable pipes to slide up and down in a reciprocating manner, and therefore the stirring tooth sheets can rotationally stir the mud layers at different height positions, the mud is stirred and heated more uniformly and fully, the drying use efficiency is further improved, meanwhile, the four water permeable pipes can dialyze and drain the mud layers at different height positions, the mud is dialyzed and drained more uniformly and thoroughly, and the drying efficiency of the mud is further improved;
after the water is evaporated completely, the positioning frame is separated from the drying box by lifting the inserting baffle plate and the positioning frame through the electric push rod, then the cover plate (4) is slid on the top opening of the drying box (1), anaerobic heating is started to the sludge until the sludge is dried to form a carbon block, and finally the inserting baffle plate (5) is slid upwards to open to collect and unload the carbon block in the drying box (1);
the sludge pre-drying carbonization treatment equipment comprises a drying box (1) and a cover plate (4), wherein the drying box (1) comprises a hearth (101) and T-shaped track strips (102), the whole drying box (1) is of a rectangular structure, the bottom of the drying box is welded with the hearth (101) corresponding to the shape of the drying box, the bottom of the hearth (101) is provided with six ventilation grooves at equal intervals in a penetrating manner, and the bottom of the hearth (101) is symmetrically welded with the two T-shaped track strips (102) in a hanging manner; four electric push rods (2) are symmetrically and vertically arranged at the front end and the rear end of the drying box (1); the electric push rod (2) comprises an I-shaped support frame (201), the I-shaped support frame (201) is installed at the top end locking cross arm of the telescopic rod of the electric push rod (2) at four positions, and a motor (3) is fixedly locked at the right side position of the top end of the I-shaped support frame (201); the cover plate (4) comprises forward-probing supporting plates (401), the cover plate (4) is of a rectangular structure, two L-shaped supporting legs are symmetrically welded on the cover plate, a cross-brace beam rod is welded between the middle sections of the two L-shaped supporting legs, two forward-probing supporting plates (401) are symmetrically welded on the cross-brace beam rod, and the vertical turning sections of the head ends of the two forward-probing supporting plates (401) are correspondingly matched with the two T-shaped track strips (102) in a sliding manner; four hollow rotating shafts (7) are arranged between the inserting baffle plate (5) and the positioning frame (6) in an inserting and inserting way at equal intervals, and a water permeable pipe (8) is inserted and locked in each of the four hollow rotating shafts (7); a row of combustion pipes are welded on the left side wall of the hearth (101) in a penetrating mode, a row of arc-shaped gas grooves are formed in the outer wall of the top end of each row of combustion pipes, the tops of the rows of combustion pipes are inserted into the hearth (101), and the tail ends of the backs of the rows of combustion pipes are welded and communicated with a cross-bracing gas distribution pipe (9); an electromagnetic valve is arranged on the air inlet short pipe of the air distribution pipe (9);
the electric push rod (2) further comprises positioning square rods (202), the bottoms of the left end and the right end of the I-shaped support frame (201) are symmetrically welded with the four positioning square rods (202), and the left row and the right row of positioning square rods (202) can slide down along the I-shaped support frame (201) to abut against the inner wall of the bottom of the drying box (1); the motor (3) comprises swing rods (301) and connecting rods (302), the swing rods (301) are sleeved on the left end section and the right end section of a rotating shaft of the motor (3), and the tail ends of the swing rods (301) are rotatably connected with the connecting rods (302); the length of the inserting baffle plate (5) is twice that of the positioning frame (6), and the positioning frame (6) is integrally formed by welding a top end cross strut beam rod and four vertical strut rods arranged at the bottom; the inserting baffle plate (5) slides downwards along the I-shaped support frame (201) and penetrates through the rear end section of the side wall of the bottom of the drying box (1).
2. The method for pre-drying and carbonizing sludge according to claim 1, characterized in that: the hollow rotating shaft (7) comprises a stirring tooth sheet (701) and gears (702), six rows of penetrating grooves with equal intervals are formed in the hollow rotating shaft (7) in an annular array, and the gears (702) are sleeved on the rear end sections of the hollow rotating shaft (7); six stirring tooth plates (701) are circumferentially distributed and welded on the hollow rotating shaft (7), and the six stirring tooth plates (701) are positioned in the space between the six rows of through grooves at intervals; the whole permeable pipe (8) is formed by welding and combining six support thin shafts which are arranged in a surrounding way and a row of positioning rings together, and a layer of filter cloth covers and blocks permeable grooves which are formed among the positioning rings at intervals; the head end section of the water permeable pipe (8) is provided with an external thread and welded with a plum blossom knob.
3. The method for pre-drying and carbonizing sludge according to claim 1, characterized in that: four rows of tooth grooves are correspondingly formed in the left and right of the lower half sections of the four positioning square rods (202) on the right side, and the four rows of tooth grooves are correspondingly contacted with four gears (702); the tail end of the left connecting rod (302) is correspondingly connected with the inserting baffle plate (5) in a rotating and inserting mode, and the tail end of the right connecting rod (302) is correspondingly connected with the positioning frame (6) in a rotating and inserting mode.
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| CN202010987789.XA CN112094016B (en) | 2020-09-18 | 2020-09-18 | Pre-drying carbonization treatment method for sludge |
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| CN112094016B true CN112094016B (en) | 2021-09-07 |
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