CN216114056U - Cement kiln is dealt with danger waste material in coordination and is thrown material system - Google Patents

Abstract

The utility model relates to a feeding system for cooperatively treating hazardous waste in a cement kiln, and discloses the feeding system for cooperatively treating the hazardous waste in the cement kiln. The material collecting device comprises a rack, a material collecting bin, a kiln, a scraping plate and a driving assembly for driving the scraping plate to slide. After the hazardous waste is stored in the hazardous waste system, the liquid hazardous waste enters a kiln tail hot plate furnace or a kiln head high-temperature section through a back-injection pump and a conveying pipeline and is atomized and incinerated through an atomizing spray gun; conveying the solid hazardous wastes to a grinding device for grinding by a crane grab bucket and a conveying belt to generate a cement clinker raw material; and conveying the semi-solid hazardous waste to a kiln tail hot plate furnace system for incineration by a material collecting bin, a screw conveyor, a plunger pump and a conveying pipeline. The utility model solves the clogging problem of semi-solid hazardous waste in a cement kiln cooperative production system.

Description

Cement kiln is dealt with danger waste material in coordination and is thrown material system

Technical Field

The application relates to the technical field of hazardous solid waste disposal by cement kiln in the field of environmental protection, in particular to a hazardous waste disposal system by cement kiln.

Background

At present, most enterprises and institutions adopt a cement kiln to dispose hazardous wastes in a synergic manner. Theories and practices at home and abroad prove that the cooperative disposal of the wastes by using the cement kiln is an important technical approach for harmless, quantitative-reduction and resource disposal of dangerous wastes and municipal domestic wastes, and is an important measure for low-cost large-scale disposal of the wastes.

Chinese patent No. CN209782655U discloses a system for co-processing hazardous waste in a cement kiln, wherein semi-solid hazardous waste in a semi-solid hazardous waste storage tank is transferred to a semi-solid hazardous waste feed hopper through a bucket elevator, transferred to the hopper through a belt conveyor, and finally burned in the kiln; the liquid hazardous waste feeding system comprises a low-calorific-value waste liquid storage tank and a high-calorific-value waste liquid storage tank, waste liquid in the low-calorific-value waste liquid storage tank enters the rotary kiln incinerator for incineration through a pipeline, and waste liquid in the high-calorific-value waste liquid storage tank enters the secondary combustion chamber for incineration.

In view of the above-mentioned related art, there is a defect that semi-solid hazardous waste containing a mixture of liquid and solid is easily agglomerated to be deposited at the bottom of the feed hopper to block the discharge opening.

Disclosure of Invention

In order to reduce semi-solid state danger waste deposit bottom the feeder hopper, this application provides a cement kiln is in coordination with handling danger waste and is thrown material system.

The application provides a pair of cement kiln is dealt with danger waste material feeding system in coordination adopts following technical scheme:

the utility model provides a cement kiln deals with danger wastes material in coordination and throws material system, includes frame, receipts feed bin and kiln, the receipts feed bin sets up in the frame, pan feeding mouth and discharge hopper have been seted up to the receipts feed bin, be provided with on the discharge hopper and be used for carrying the screw conveyer to the kiln with the semi-solid state danger wastes material in the receipts feed bin, the inside slip of receipts feed bin is provided with scrapes the flitch, be provided with on the receipts feed bin and be used for the drive to scrape the gliding drive assembly of flitch.

Through adopting above-mentioned technical scheme, in the working process that cement kiln deals with danger waste material in coordination and throws material system and handle half solid-state danger waste material, half solid-state danger waste material gets into the receipts feed bin by the pan feeding mouth, scrapes the flitch through the drive assembly drive and slides, can scrape into the discharge hopper with the half solid-state danger waste material of receiving the feed bin bottom, also can play the effect of stirring, prevent that half solid-state danger waste material from agglomerating, be favorable to half solid-state danger waste material to unload into screw conveyer from the discharge hopper, carry to the kiln by screw conveyer again and burn.

Optionally, the driving assembly includes a frame, a connecting shaft, and a driving member for driving the connecting shaft to slide, the connecting shaft is fixedly disposed on the frame, and the frame is provided with a plurality of scraping plates.

Through adopting above-mentioned technical scheme, driving piece drive connecting axle slides, and the connecting axle drives the frame and slides to make the flitch of scraping on the frame slide, reach the purpose of scraping the material, a plurality of flitchs of scraping simultaneous working are favorable to scraping the material more high-efficiently.

Optionally, the scraper plate is obliquely arranged on the frame.

Through adopting above-mentioned technical scheme, the scraper blade slope sets up can strike off the semi-solid state danger wastes material of receiving material storehouse lateral wall and diapire better on the frame, is favorable to improving work efficiency.

Optionally, the kiln includes kiln head, kiln tail and rotary kiln, kiln head and kiln tail all communicate with the rotary kiln, screw conveyer includes casing, pivot, helical blade and first rotating electrical machines, be provided with feeder hopper and discharging pipe on the casing, feeder hopper and discharging pipe all communicate with the casing, the pivot is rotated and is set up in the casing, helical blade is fixed to be set up in the pivot.

By adopting the technical scheme, the semi-solid hazardous waste enters the screw conveyor from the feed hopper, is conveyed by the screw conveyor, finally enters the kiln tail from the discharge pipe, is incinerated at the kiln tail and then enters the kiln head after being calcined by the rotary kiln.

Optionally, a waste liquid tank is arranged on the frame, a first conveying pipeline is communicated with the waste liquid tank and communicated with the kiln tail, a branch pipe is communicated with the first conveying pipeline and communicated with the kiln head.

Through adopting above-mentioned technical scheme, with liquid danger waste storage in the waste liquid jar, get into kiln tail and kiln head by first pipeline and branch pipe respectively and burn, can handle the liquid danger waste that the cement kiln dealt with danger waste in the feeding system in coordination, the effect of handling danger waste is showing more.

Optionally, the waste liquid tank includes an acidic waste liquid tank for storing acidic liquid hazardous waste, a neutral waste liquid tank for storing neutral liquid hazardous waste, and an alkaline waste liquid tank for storing alkaline liquid hazardous waste.

Through adopting above-mentioned technical scheme, carry out the chemical examination to the liquid dangerous waste material before advancing the factory, after the reasonable collocation of laboratory ratio, get into respectively according to acidity, neutrality, basicity and correspond the waste liquid jar, prevent that liquid dangerous waste material from taking place chemical reaction in the storage process, arouse danger.

Optionally, be provided with the back flush pump on the first pipeline, be provided with the first valve that is used for controlling liquid dangerous waste to get into the kiln tail on the first pipeline, be provided with the second valve that is used for controlling liquid dangerous waste to get into the kiln head on the branch pipe.

Through adopting above-mentioned technical scheme, the back flush pump reduces the pressure when liquid danger wastes material gets into first conveyer pipe, thereby prevents the superpressure protection pipeline, and the flow size of valve control liquid danger wastes material can also adjust liquid danger wastes material to get into the kiln head alone and burn or get into the kiln tail and burn according to the kiln actual conditions for the operation is more convenient.

Optionally, one end of the first conveying pipeline communicated with the kiln tail is provided with a first atomizing spray gun, and one end of the branch pipe close to the kiln head is provided with a second atomizing spray gun.

Through adopting above-mentioned technical scheme, atomizing spray gun becomes fog with liquid danger waste conversion for liquid danger waste incineration's more thoroughly.

Optionally, still including the grinding device that is used for grinding solid-state danger wastes material, be provided with the driving grab bucket that is used for snatching solid-state danger wastes material in the frame, be provided with the conveyor belt that is used for carrying the solid-state danger wastes material that the driving grab bucket snatched to grinding device in the frame.

Through adopting above-mentioned technical scheme, accord with cement raw materials composition and the useless reasonable collocation back of higher solid-state danger of content is sent to grinding device by driving grab bucket, conveyer belt and is ground as cement raw and other materials, is favorable to solid-state danger waste recycling.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after being mixed and matched, the liquid hazardous waste is sent into a kiln tail or a kiln head by a back-injection pump; mixing and proportioning the semi-solid hazardous waste, and pumping the hazardous waste to the tail of the kiln for incineration through a material collecting bin; after being reasonably matched, the solid hazardous wastes enter a grinding device for grinding. The hazardous waste multi-channel incineration of a cement production system is realized, and meanwhile, the heat energy generated by the calcination of a cement kiln is recovered;

2. the receiving bin for the semi-solid hazardous wastes is internally provided with a frame, a plurality of scraping plates and a driving piece for driving the scraping plates to slide, and the scraping plates are obliquely arranged on the frame, so that the semi-solid hazardous wastes at the bottom of the receiving bin can be scraped into a discharge opening, and the effects of stirring and uniformly mixing can be achieved;

3. carry out chemical examination to liquid state danger waste, get into corresponding waste liquid jar respectively according to acidity, neutrality, basicity after the reasonable collocation, prevent that liquid state danger waste from taking place chemical reaction in the storage process, arouse danger.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a scraper plate and a screw conveyer which are mainly embodied in the embodiment of the application;

fig. 3 is a schematic structural diagram of a grab bucket of the crane according to the embodiment of the present application.

Description of reference numerals: 1. a frame; 2. a material receiving bin; 21. a grid; 22. a feeding port; 23. a discharge hopper; 3. a waste liquid tank; 4. a solid hazardous waste storage tank; 5. a conveyor belt; 6. a grinding device; 7. a kiln; 71. a kiln tail; 72. a kiln head; 73. a rotary kiln; 74. a base; 8. A grate cooler; 81. a recovery tank; 82. a recovery pipe; 9. a first delivery conduit; 91. a branch pipe; 92. a second valve; 93. a second atomizing spray gun; 94. a first valve; 95. a first atomizing spray gun; 96. a back-spray pump; 10. a second delivery conduit; 101. a plunger pump; 11. a frame; 111. a scraping plate; 112. a cylinder; 113. a connecting shaft; 114. an L-shaped plate; 12. a housing; 121. a feed hopper; 122. a rotating shaft; 123. a helical blade; 124. a first rotating electrical machine; 125. a discharge pipe; 126. fixing a bracket; 13. a grab bucket; 131. pulling a rope; 132. a slider; 133. a screw rod; 134. a drive motor; 135. a second rotating electrical machine; 136. and (4) winding the reel.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses cement kiln is dealt with danger waste material feeding system in coordination.

Referring to fig. 1, a cement kiln is in coordination with handling hazardous waste and is thrown material system, includes frame 1, receipts material storehouse 2 and kiln 7. Receive feed bin 2 and set up in frame 1, frame 1 includes stand and crossbeam, receives feed bin 2 and is the cuboid structure, receives feed bin 2 to go up the intercommunication and is provided with discharge hopper 23, receives feed bin 2 and has seted up pan feeding mouth 22 on keeping away from the roof of discharge hopper 23, is provided with grid 21 in the opening direction of discharge hopper 23 of keeping away from of pan feeding mouth 22, and grid 21 can prevent to lead to the fact the jam in the semi-solid dangerous wastes material bold debris gets into receiving feed bin 2.

Referring to fig. 1, a kiln 7 is fixedly arranged on a base 74 and is divided into a kiln head 72, a kiln tail 71 and a rotary kiln 73, a grate cooler 8 is arranged on one side of the kiln head 72, which is far away from the kiln tail 71, a recovery pipe 82 is arranged on the grate cooler 8, the kiln head 72 and the grate cooler 8 are both communicated with the recovery pipe 82, a recovery groove 81 is arranged on the grate cooler 8, and the recovery groove 81 penetrates through the side wall of the grate cooler 8.

Referring to fig. 1 and 2, a screw conveyor for conveying semi-solid hazardous waste in the material receiving bin 2 to a kiln is arranged under an opening at one end of the discharging hopper 23 away from the grid 21, the screw conveyor comprises a shell 12, a rotating shaft 122, a screw blade 123 and a first rotating motor 124, a feeding hopper 121 and a discharging pipe 125 are arranged on the shell 12, the feeding hopper 121 and the discharging pipe 125 are both communicated with the shell 12, the rotating shaft 122 is rotatably arranged in the shell 12, and the screw blade 123 is fixedly arranged on the rotating shaft 122. The first rotating motor 124 drives the rotating shaft 122 to rotate, and the rotating shaft 122 drives the helical blade 123 to rotate, so that the waste material entering the housing 12 is conveyed through the rotation of the helical blade 123. The feed hopper 121 of the screw conveyor is fixedly connected to the frame 1 through a fixing support 126, and is on the same vertical straight line with the discharge hopper 23, a discharge pipe 125 of the screw conveyor is communicated with the second conveying pipeline 10, and the second conveying pipeline 10 is made of wear-resistant materials, such as steel pipes. The second conveying pipeline 10 is provided with a material receiving pump which is a plunger pump 101, the plunger pump 101 pumps semi-solid dangerous waste to the kiln tail 71 through the second conveying pipeline 10 for incineration, the semi-solid dangerous waste is calcined through the rotary kiln 73 and finally enters the kiln head 72, then enters the grate cooler 8 through the recovery pipe 82, is subjected to quenching cooling in the grate cooler 8, and is discharged for standby through the recovery tank 81 after being crushed into clinker particles.

Referring to fig. 2, receive and be provided with frame 11 on the inner wall that material storehouse 2 is close to discharge hopper 23, frame 11 is square structure, and frame 11 leaves the space with receiving 2 both sides inner walls in material storehouse, guarantees that frame 11 can be in receiving 2 horizontal sliding in the material storehouse, and frame 11 is inside to set up a plurality of square cell check, and the slope is provided with in the square cell check scrapes flitch 111, and closes on scraping flitch 111 opposite direction between the cell check. Fixedly connected with connecting axle 113 on the lateral wall of one side of frame 11, connecting axle 113 link up and receive feed bin 2, are provided with on the outer wall of receiving feed bin 2 to be used for driving the gliding driving piece of connecting axle 113, and the driving piece is cylinder 112, fixes cylinder 112 on receiving feed bin 2 outer wall through L template 114, cylinder 112's piston rod and connecting axle 113 fixed connection. After semi-solid state dangerous waste material got into receiving feed bin 2, cylinder 112 drive connecting axle 113 slides, and connecting axle 113 drives frame 11 and slides, plays the effect of stirring mixing, scrapes flitch 111 on the frame 11 simultaneously and scrapes into discharge hopper 23 with the semi-solid state dangerous waste material of receiving feed bin 2 bottom, reduces semi-solid state dangerous waste material siltation, prevents to cause the jam.

Referring to fig. 1, still be provided with waste liquid jar 3 in the frame 1, waste liquid jar 3 is the cylinder structure, and waste liquid jar 3 sets up threely at least, including the acid waste liquid jar 3 that is used for saving acid liquid danger waste, the neutral waste liquid jar 3 that is used for saving neutral liquid danger waste and the alkaline waste liquid jar 3 that is used for saving alkaline liquid danger waste, is favorable to categorised the depositing to liquid state danger waste, prevents to take place chemical reaction and causes danger. Three kinds of waste liquid jar 3 all communicate with first pipeline 9 for acid waste liquid can be with alkaline waste liquid neutralization, reduce the pollution. First pipeline 9 is corrosion-resistant material, is provided with the back flush pump 96 on the first pipeline 9 for reduce the pressure that liquid flowed through first pipeline 9, the protection pipeline, first pipeline 9 still communicates and is provided with branch pipe 91, for example polyethylene pipe. The first conveying pipeline 9 is communicated with the kiln tail 71, and a first atomizing spray gun 95 is arranged at the end of a pipe orifice communicated with the kiln tail 71; the branch pipe 91 is communicated with the kiln head 72, and a second atomizing spray gun 93 is arranged at the end of a pipe orifice communicated with the kiln head 72; the atomizing device is used for atomizing liquid hazardous wastes, and is convenient to incinerate. The first valve 94 is arranged at the joint of the first conveying pipeline 9 and the first atomizing spray gun 95, the second valve 92 is arranged at the joint of the branch pipe 91 and the second atomizing spray gun 93, and the first valve 94 and the second valve 92 are both electrically operated valves and are used for controlling the flow of the liquid hazardous waste, and the liquid hazardous waste can be adjusted to enter the kiln head 72 for incineration or enter the kiln tail 71 for incineration independently according to the actual conditions of the kiln.

Referring to fig. 1, still be provided with solid-state danger waste storage tank 4 in frame 1, solid-state danger waste storage tank 4 is the cuboid structure, the notch is the open mode, be provided with driving grab bucket 13 with notch vertically direction, be provided with milling unit 6 on the direction of solid-state danger waste storage tank 4 minor face, milling unit 6 is the cuboid structure, inside is provided with the grinding wheel of the solid-state danger waste of grinding, be connected with between milling unit 6 and the solid-state danger waste storage tank 4 and be used for carrying the solid-state danger waste that driving grab bucket 13 snatched to milling unit 6's conveyor belt 5. The solid-state dangerous waste in the solid-state dangerous waste storage tank 4 is grabbed to the conveying belt 5 by the crane grab bucket 13, and the solid-state dangerous waste is conveyed to the grinding device 6 by the conveying belt 5 for grinding, so that the purpose of treating the solid-state dangerous waste is achieved.

Referring to fig. 3, the grab bucket 13 is disposed on two beams of the frame 1 for grabbing solid hazardous waste in the solid hazardous waste storage tank 4. The crane grab bucket 13 comprises a grab bucket 13, a screw 133, a sliding block 132 and a pull rope 131, wherein a second rotating motor 135 is fixedly arranged on the sliding block 132, a winding reel 136 is fixedly arranged on an output shaft of the second rotating motor 135, the pull rope 131 can be made of a steel wire rope, the pull rope 131 is wound on the winding reel 136, one end of the pull rope 131 is fixedly connected with the grab bucket 13, the other end of the pull rope 131 is fixedly connected with the winding reel 136, and the second rotating motor 135 drives the winding reel 136 to rotate, so that the pull rope 131 wound on the winding reel 136 is lengthened or shortened, and the height of the grab bucket 13 is adjusted. The screw 133 is arranged on one of the beams of the frame 1 in parallel, two ends of the screw 133 are fixedly connected with the beams, the slider 132 is slidably sleeved on the screw 133 and the other beam of the frame 1, one end of the screw 133 is provided with a driving motor 134 for driving the screw 133 to rotate, the driving motor 134 drives the screw 133 to rotate, the screw 133 drives the slider 132 to rotate, but the other beam of the frame 1 limits the rotation of the slider 132, so that the slider 132 horizontally moves along the screw 133, and the grab bucket 13 can slide in the horizontal direction.

The implementation principle of the hazardous waste feeding system for cement kiln co-treatment is as follows: after being mixed and matched, the liquid hazardous waste is sent into the kiln tail 71 or the kiln head 72 by a back-spraying pump 96; semi-solid dangerous waste is mixed and proportioned and then is pumped to a kiln tail 71 through a material receiving bin 2 to be incinerated; after being reasonably matched, the solid hazardous wastes enter a grinding device 6 for grinding. The hazardous waste multi-channel incineration of the cement production system is realized, and meanwhile, the heat energy generated by the calcination of the cement kiln is recovered.

In the working process of handling semi-solid dangerous waste in the cement kiln collaborative processing dangerous waste feeding system, semi-solid dangerous waste enters the receiving bin 2 from the feeding port 22, the cylinder 112 drives the scraping plate 111 to slide, the semi-solid dangerous waste at the bottom of the receiving bin 2 can be scraped into the discharging hopper 23, the stirring effect can be played, the semi-solid dangerous waste is prevented from being coagulated, the semi-solid dangerous waste is favorably discharged into the screw conveyor from the discharging hopper 23, and the semi-solid dangerous waste is conveyed to the kiln tail 71 by the screw conveyor to be incinerated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a cement kiln is dealt with danger waste material in coordination and is thrown material system, includes frame (1), receipts feed bin (2) and kiln (7), its characterized in that: receive feed bin (2) and set up in frame (1), the intercommunication is provided with discharge hopper (23) on receive feed bin (2), receive feed bin (2) and keep away from on the roof of discharge hopper (23) pan feeding mouth (22), the one end that pan feeding mouth (22) were kept away from in discharge hopper (23) is provided with and is used for carrying the semi-solid state danger waste in receiving feed bin (2) to the screw conveyer of kiln (7), receive feed bin (2) inside slip to be provided with and scrape flitch (111), be provided with on receive feed bin (2) and be used for the drive to scrape the gliding drive assembly of flitch (111).

2. The cement kiln hazardous waste co-processing feeding system according to claim 1, characterized in that: the driving assembly comprises a frame (11), a connecting shaft (113) and a driving piece for driving the connecting shaft (113) to slide, the connecting shaft (113) is fixedly arranged on the frame (11), and a plurality of scraping plates (111) are arranged on the frame (11).

3. The cement kiln hazardous waste co-processing feeding system according to claim 2, characterized in that: the scraping plate (111) is obliquely arranged on the frame (11).

4. The cement kiln hazardous waste co-processing feeding system according to claim 1, characterized in that: kiln (7) include kiln head (72), kiln tail (71), rotary kiln (73), kiln head (72) and kiln tail (71) all communicate with rotary kiln (73), screw conveyer includes casing (12), pivot (122), helical blade (123) and first rotating electrical machines (124), be provided with feeder hopper (121) and discharging pipe (125) on casing (12), feeder hopper (121) and discharging pipe (125) all communicate with casing (12), pivot (122) are rotated and are set up in casing (12), first rotating electrical machines (124) are fixed to be set up on casing (12), the output shaft and the coaxial fixed connection of pivot (122) of first rotating electrical machines (124), helical blade (123) are fixed to be set up on pivot (122).

5. The cement kiln hazardous waste co-processing feeding system according to claim 1, characterized in that: the kiln comprises a frame (1), and is characterized in that a waste liquid tank (3) is arranged on the frame (1), a first conveying pipeline (9) is communicated with the waste liquid tank (3), the first conveying pipeline (9) is communicated with a kiln tail (71), a branch pipe (91) is communicated with the first conveying pipeline (9), and the branch pipe (91) is communicated with a kiln head (72).

6. The cement kiln hazardous waste co-processing feeding system according to claim 5, wherein: the waste liquid tank (3) comprises an acidic waste liquid tank (3) for storing acidic liquid dangerous waste, a neutral waste liquid tank (3) for storing neutral liquid dangerous waste and an alkaline waste liquid tank (3) for storing alkaline liquid dangerous waste.

7. The cement kiln hazardous waste co-processing feeding system according to claim 5, wherein: be provided with back flush pump (96) on first pipeline (9), be provided with first valve (94) that are used for controlling liquid dangerous waste to get into kiln tail (71) on first pipeline (9), be provided with second valve (92) that are used for controlling liquid dangerous waste to get into kiln head (72) on branch pipe (91).

8. The cement kiln hazardous waste co-processing feeding system according to claim 5, wherein: one end that first pipeline (9) and kiln tail (71) communicate is provided with first atomizing spray gun (95), branch pipe (91) are close to one of kiln head (72) and are served and are provided with second atomizing spray gun (93).

9. The cement kiln hazardous waste co-processing feeding system according to claim 1, characterized in that: still including grinding device (6) that is used for grinding solid-state dangerous waste, be provided with driving grab bucket (13) that are used for snatching solid-state dangerous waste on frame (1), be provided with on frame (1) and be used for carrying the solid-state dangerous waste that driving grab bucket (13) snatched to conveyor belt (5) of grinding device (6).

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