WO2022082888A1

WO2022082888A1 - Large household garbage water-cooling grate furnace

Info

Publication number: WO2022082888A1
Application number: PCT/CN2020/127799
Authority: WO
Inventors: 丁孝荣; 何志刚; 盛庆伟; 邵伯凯; 韩飞飞
Original assignee: 江苏天楹环保能源成套设备有限公司; 中国天楹股份有限公司
Priority date: 2020-10-21
Filing date: 2020-11-10
Publication date: 2022-04-28
Also published as: CN112178661A

Abstract

A large household garbage water-cooling grate furnace. Two fixed wall plates (3) are arranged at an interval in the left-right direction, and the two ends of the fixed wall plates are respectively welded to a front wall plate (1) and a rear wall plate (2), so as to form an integral grate frame; two movable wall plates (5) are arranged between the two fixed wall plates (3); the two movable wall plates (5) are arranged in a front-back collinear mode, and the two movable wall plates are connected by means of a hinge connection shaft (11), and horizontally and reciprocatingly move in the front-back direction; a plurality of fixed grate connecting frames (14) are arranged on the upper ends of the two fixed wall plates (3), and a plurality of movable grate connecting frames (15) are arranged on the upper ends of the movable wall plates (5); the fixed grate connecting frames (14) and the movable grate connecting frames (15) are alternately distributed at intervals; moreover, fixed water-cooling grate piece sets (4) are further horizontally and longitudinally arranged on the fixed grate connecting frames (14), and movable water-cooling grate piece sets (6) are further horizontally and longitudinally arranged on the movable grate connecting frames (15). The water-cooling grate furnace connects a plurality of water-cooling grate pieces (41) in series, and a secondary water supply pipe (415) and a secondary water return pipe (416) are separately and integrally poured in the corresponding water-cooling grate pieces (41), thereby improving the running stability and the grate piece cooling stability.

Description

A large-scale domestic waste water-cooled grate furnace

technical field

The invention relates to a domestic waste incineration treatment device, in particular to a large-scale domestic waste water-cooled grate furnace.

Background technique

Waste incineration is the most common waste treatment method at present. The biggest advantage of this method is the high degree of waste recycling and reduction. It has become the main way to deal with domestic waste and an important part of the power industry.

Most of the existing typical grate furnace grate pieces are cooled by air cooling. When the calorific value of the waste exceeds 2000Kcal/kg, the material cannot withstand the high temperature generated by the high calorific value waste, and traditional air cooling cannot effectively cool the grate pieces; The garbage in the local high temperature area is also more prone to melting reaction, and the melted product is easily brought to the grate air outlet due to the front and rear displacement of the grate, which causes the air outlet to block and greatly reduces the air cooling effect; while the conventional Although the water-cooled grate solves the problem that the temperature of the grate sheet is too high, when the water-cooled grate is in motion, the connection and sealing problem between the static and dynamic pipes of the cooling water pipe cannot be well solved; The connections are mostly joint connections. Under high temperature conditions, signs of aging and loosening are likely to occur, the sealing problem cannot be effectively controlled, and the maintenance rate is high; and the conventional water-cooled grate pieces are mostly cavity casting or embedded tube-type integral casting. The grate sheet has a little sealing problem and must be replaced as a whole, and the equipment maintenance cost is high. Therefore, the above problems need to be solved urgently.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a large-scale domestic waste water-cooled grate furnace. Both the fixed water-cooled grate group and the movable water-cooled grate group adopt a combined design, both of which are connected in series with several water-cooled grate pieces, and the secondary The water supply pipe and the secondary return water pipe are integrally poured inside the corresponding water-cooled grate pieces, which makes the cooling effect better, reduces the required number of pipe joints, and greatly improves the stability of operation and cooling of the grate pieces.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a large-scale domestic waste water-cooled grate furnace of the present invention has the innovative point of including fixed wall panels, movable wall panels, fixed water-cooled grate slices, and movable water-cooled grate slices group, hinge shaft, driving mechanism, fixed grate connecting frame and movable grate connecting frame; the two fixed wall panels are vertically arranged at left and right intervals, and their two ends are respectively vertically welded to the front wall panel and the rear wall panel. together, and form an integral grate frame; between the two fixed wall panels along the length direction, two movable wall panels are also vertically arranged at parallel intervals, and the two movable wall panels are arranged at a collinear interval in the front and rear, The two are connected by a hinge shaft, and a driving mechanism is also provided at the rear end of the movable wall panel corresponding to the rear wall panel. Driven by the driving mechanism, the two movable wall panels reciprocate back and forth horizontally. movement; between the upper ends of the two fixed wall panels, there are also several fixed grate connecting frames at intervals along the length direction, and the corresponding positions of each of the movable wall panels are separated from the two fixed wall panels respectively. The lower part of the corresponding fixed grate connecting frame on the upper part passes through, and several movable grate connecting frames are arranged at intervals along the length direction of the upper end of each movable wall panel; each fixed grate connecting frame is connected to each One of the movable grate connecting racks is alternately distributed, and a fixed water-cooled grate sheet group is arranged horizontally and vertically on each of the fixed grate connecting racks, and each movable grate connecting rack is also There are movable water-cooled grate pieces in the horizontal and vertical directions.

Preferably, it also includes a support wheel, a guide wheel and a support plate; a plurality of support wheels are spaced in sequence along the length direction between the two fixed wall panels at the upper position, and at the bottom of each of the movable wall panels A number of guide wheels are also arranged at intervals along its length direction; the setting position of each guide wheel corresponds to the setting position of the corresponding support wheel, and the guide wheels on each movable wall panel are respectively supported by The board is supported on the corresponding support wheels between the two fixed wall boards, and the left and right offsets of the movable wall boards are ensured through the guide wheels when the movable wall boards move back and forth.

Preferably, the driving mechanism includes a bearing seat, a main transmission shaft and a hydraulic cylinder; two bearing seats are also symmetrically arranged at the rear end between the two fixed wall plates, and two bearing seats are provided on the two bearing seats. A main drive shaft is also installed on the upper part; a hydraulic cylinder is also inclined and fixed at the rear wall panel between the two fixed wall panels, and the output end of the hydraulic cylinder is inclined in the direction corresponding to the movable wall panel Set upward; two sets of cranks are also arranged on the main drive shaft; a set of cranks on the main drive shaft are hinged with the cranks of the rear wall panel corresponding to the movable wall panels through a connecting rod mechanism, and the Another set of cranks on the main drive shaft is hinged with the output end of the hydraulic cylinder; the hydraulic cylinder pushes the crank on the main drive shaft, and then drives the crank on the movable wall plate through the connecting rod mechanism to reciprocate the arc of the main drive shaft The movement is transformed into a back-and-forth horizontal movement of the movable wall panel.

Preferably, the upper end of each fixed grate connecting frame and the upper end of each movable grate connecting frame are respectively provided with lugs, and each of the fixed water-cooled grate pieces is connected to the corresponding The lugs of the fixed grate connecting frame are fixedly connected, and each of the movable water-cooled grate sheet groups is respectively fixedly connected to the lugs corresponding to the movable grate connecting frame through pins.

Preferably, the structure of each of the fixed water-cooled grate sets is consistent with the structure of each of the movable water-cooled grate sets, and each of the movable water-cooled grate sets is constructed along with the corresponding movable wall panels. It reciprocates and horizontally moves back and forth, and does not interfere with the corresponding fixed water-cooled grate group.

Preferably, a first-level water supply pipe and a first-level return pipe are also included; a first-level water supply pipe and a first-level return pipe are also fixed horizontally between the front wall panel and the rear wall panel, respectively, and are connected to each of the fixed grate A number of branch pipes are also vertically fixed on one side of the frame, the first-level water supply pipes are respectively in sealing communication with the water inlets corresponding to the fixed water-cooled grate group through the branch pipes, and the water outlets of each fixed water-cooled grate group are respectively The branch pipe is in sealing communication with the primary return water pipe to form a cycle.

Preferably, it also includes a movable water supply pipe, a movable water return pipe and a flexible connection pipe; a movable water supply pipe and a movable water return pipe are respectively provided between the front wall panel and the rear wall panel, and the movable water supply pipe and the movable water return pipe are respectively provided It is fixed on the corresponding movable wall panel by a clamp; one end of the movable water supply pipe is in sealing communication with the water inlet of each movable water-cooled grate group, and the other end extends vertically out of the rear wall panel and passes through The flexible connection pipe is in sealing communication with the first-level water supply pipe; one end of the movable water return pipe is in sealing communication with the water outlet of each movable water-cooled grate group, and the other end extends vertically out of the rear wall plate and passes through The soft connecting pipe is in sealing communication with the primary return water pipe.

Preferably, a compression packing sealing device is also included; the other end of the movable water return pipe and the other end of the movable water supply pipe are respectively sealed and connected to the rear wall panel through the compression packing sealing device.

Preferably, each of the fixed water-cooled grate sheet sets includes a water-cooled grate sheet, connecting bolts and gaskets, and each of the water-cooled grate sheets includes a grate sheet body, a web, a secondary water supply pipe, and a secondary water return pipe , water inlet and water outlet; the body of each grate sheet is integrally cast and formed, and its abdomen is formed with a cooling area composed of a plurality of cooling water channels, and the cooling area is divided into water inlet pipeline areas by corresponding webs respectively. And the return water pipeline area, each of the water inlet pipeline area and the corresponding return water pipeline area are communicated at the tail, and form a relatively sealed space; the head of each of the grate pieces is also cast and formed separately. A secondary water supply pipe and a secondary water return pipe, each of the secondary water supply pipes is in sealed communication with the corresponding water inlet pipe area, and each of the secondary water return pipes is in sealed communication with the corresponding water return pipe area; in each The grate piece body is also provided with a water inlet and a water outlet respectively, each of the water inlets is in sealed communication with the corresponding secondary water supply pipe, and each of the water outlets is in sealed communication with the corresponding secondary water return pipe.

Preferably, a plurality of the water-cooled grate pieces are arranged in parallel in sequence, and the adjacent water-cooled grate pieces are respectively fixed together by connecting bolts, and the adjacent secondary water supply pipes and the adjacent secondary water return pipes are fixed together. The water pipes are respectively sealed and communicated through sealing gaskets; the secondary water supply pipe ports and the secondary water return pipe ports of the two outermost water-cooled grate sheets are sealed and blocked respectively, and all the other water-cooled grate sheets are sealed except for the middle one of the water-cooled grate sheets. The water inlet and the water outlet of the water-cooled grate sheets are sealed and blocked, respectively, and a cyclic fixed water-cooled grate sheet group is formed.

Beneficial effects of the present invention:

(1) In the present invention, both the fixed water-cooled grate piece group and the movable water-cooled grate piece group adopt the water-cooling cooling method, and its cooling effect is better;

(2) In the present invention, the fixed water-cooled grate piece group and the movable water-cooled grate piece group all adopt the combined design, both of which are connected in series with several water-cooled grate pieces, and the secondary water supply pipe and the secondary water return pipe are integrally cast on the corresponding water cooling The interior of the grate sheet makes the cooling effect better, reduces the required number of pipe joints, and greatly improves the stability of operation and cooling of the grate sheet;

(3) In the present invention, the flexible connection pipes between the active water inlet and the active water supply pipe, and the active water outlet and the active return pipe are all arranged on the outside, so that the use environment of the active part has been greatly improved, and it is more conducive to maintenance. , while improving the service life;

(4) The present invention can deal with household garbage with a calorific value of more than 2000Kcal/kg. The larger the incineration treatment capacity is, the larger the grate surface is. The combination design of multiple fixed water-cooled grate grate groups and movable water-cooled grate groups is adopted, and the water cooling effect is improved. It can be controlled, and the independent secondary water cooling pipeline is more conducive to the maintenance of on-site use.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a fixed water pipeline of a large-scale domestic waste water-cooled grate furnace of the present invention.

FIG. 2 is a side view of FIG. 1 .

FIG. 3 is a schematic structural diagram of the active water pipeline of a large-scale domestic waste water-cooled grate furnace of the present invention.

FIG. 4 is a side view of FIG. 3 .

FIG. 5 is a schematic diagram of sealing between the movable water supply pipe and the modular wall panel in FIG. 3 .

FIG. 6 is a schematic structural diagram of the fixed water-cooled grate sheet group in FIG. 1 .

FIG. 7 is a schematic structural diagram of the water-cooled grate sheet in FIG. 6 .

FIG. 8 is a view A-A in FIG. 7 .

FIG. 9 is a B-B view in FIG. 7 .

Among them, 1-front wall panel; 2-rear wall panel; 3-fixed wall panel; 4-fixed water-cooled grate panel; 5-movable wall panel; 6-movable water-cooled grate panel; 7-hydraulic cylinder; 8-support Wheel; 9-bearing seat; 10-main drive shaft; 11-hinge shaft; 12-support plate; 13-guide wheel; 14-fixed grate connection frame; 15-movable grate connection frame; 16-first-level water supply Pipe; 17-first-level return pipe; 18-active water supply pipe; 19-active return pipe; 20-soft connecting pipe; 21-extrusion packing sealing device; 41-water-cooled grate piece; 42-connecting bolt; 43-seal Pad; 411-grate piece body; 412-water inlet pipe area; 413-return water pipe area; 414-web plate; 415-secondary water supply pipe; 416-secondary return pipe; 417-water inlet; 418-water outlet .

Detailed ways

The technical solutions of the present invention will be clearly and completely described below through specific embodiments.

A large-scale domestic waste water-cooled grate furnace of the present invention includes a fixed wall panel 3, a movable wall panel 5, a fixed water-cooled grate slice group 4, a movable water-cooled grate slice group 6, a hinge shaft 11, a driving mechanism, and a fixed grate connection. The frame 14 and the movable grate connecting frame 15; the specific structure is shown in Figures 1 to 9, the two fixed wall panels 3 are vertically arranged at left and right intervals, and their two ends are respectively vertically welded to the front wall panel 1 and the rear wall panel 2. together, and form an integral grate frame; between the two fixed wall panels 3 along its length direction, two movable wall panels 5 are vertically arranged at parallel intervals, and the two movable wall panels 5 are arranged at a collinear interval before and after , and the two are connected by a hinged shaft 11, and a driving mechanism is also provided at the rear end of the corresponding movable wall panel 5 near the rear wall panel 2. Driven by the driving mechanism, the two movable wall panels 5 reciprocate back and forth. horizontal movement;

Among them, several support wheels 8 are also spaced in sequence along the length direction between the two fixed wall panels 3 at the upper position, and several guide wheels 13 are also provided at the bottom of each movable wall panel 5 in sequence along the length direction. ; As shown in Figure 1, Figure 3, the setting position of each guide wheel 13 corresponds to the setting position of the corresponding support wheel 8, and the guide wheel 13 on each movable wall panel 5 is supported on the two sides by the support plate 12 respectively. The corresponding support wheels 8 between the fixed wall panels 3 and the guide wheels 13 are used to ensure the left and right offsets of the movable wall panels 5 when they move back and forth.

The drive mechanism includes a bearing seat 9, a main transmission shaft 10 and a hydraulic cylinder 7; as shown in Figures 1 and 3, two bearing seats 9 are also symmetrically arranged at the rear end between the two fixed wall plates 3, and A main drive shaft 10 is also installed on the two bearing seats 9; a hydraulic cylinder 7 is also fixedly inclined and fixed at the rear wall plate 2 between the two fixed wall plates 3, and the output end of the hydraulic cylinder 7 moves toward the corresponding movable The direction of the wall panel 5 is inclined upward; two sets of cranks are also arranged on the main drive shaft 10; In the present invention, the hydraulic cylinder 7 pushes the crank on the main drive shaft 10, and then drives the crank on the movable wall panel 5 through the connecting rod mechanism. , the circular arc reciprocating motion of the main drive shaft 10 is converted into the front and rear reciprocating horizontal motion of the movable wall panel 5 .

According to the present invention, between the upper ends of the two fixed wall panels 3, several fixed grate connecting frames 14 are arranged at intervals along the length direction thereof, and the corresponding positions of each movable wall panel 5 are respectively from the two fixed wall panels 3. Correspondingly, the lower part of the fixed grate connecting frame 14 passes through, and several movable grate connecting frames 15 are arranged at intervals along the length direction of the upper end of each movable wall panel 5. As shown in Figures 1 to 9, each fixed grate The row connecting racks 14 and each movable grate connecting rack 15 are distributed alternately at intervals, and a fixed water-cooled grate sheet group 4 is also arranged horizontally and longitudinally on each fixed grate connecting rack 14, and is connected to each movable grate. The frame 15 is also provided with a movable water-cooled grate group 6 horizontally and vertically.

As shown in Figures 1 and 3, the upper end of each fixed grate connecting frame 14 and the upper end of each movable grate connecting frame 15 are also provided with lugs respectively, and each fixed water-cooled grate sheet group 4 passes through the pin shaft respectively. It is fixedly connected to the ear plate of the corresponding fixed grate connecting frame 14 , and each movable water-cooled grate piece group 6 is fixedly connected to the ear plate of the corresponding movable grate connecting frame 15 through a pin.

According to the present invention, a first-level water supply pipe 16 and a first-level water return pipe 17 are also fixed horizontally between the front wall panel 1 and the rear wall panel 2, respectively, and a number of vertically fixed and fixed grate connecting frames 14 are also provided on the side of each fixed grate connection frame 14. Branch pipes, as shown in Figures 1 to 4, the primary water supply pipes 16 are respectively in sealing communication with the water inlet 417 of the corresponding fixed water-cooled grate group 4 through the branch pipe, and the water outlet 418 of each fixed water-cooled grate group 4 is connected to the water outlet 418 through the branch pipe respectively. The primary return pipe 17 is sealed and communicated to form a cycle.

As shown in Figures 1 to 5, a movable water supply pipe 18 and a movable water return pipe 19 are respectively provided between the front wall panel 1 and the rear wall panel 2, and the movable water supply pipe 18 and the movable water return pipe 19 are respectively fixed on the Corresponding to the movable wall panel 5; one end of the movable water supply pipe 18 is in sealing communication with the water inlet 417 of each movable water-cooled grate group 6, and the other end extends vertically out of the rear wall panel 2, and is connected to a The level water supply pipe 16 is in sealed communication; one end of the movable water return pipe 19 is in sealed communication with the water outlet 418 of each movable water-cooled grate group 6, and the other end extends vertically out of the rear wall plate 2, and is connected to a The stage return pipe 17 is in sealed communication. Wherein, the other end of the movable water return pipe 19 and the other end of the movable water supply pipe 18 are respectively sealed and connected to the rear wall panel 2 through the extrusion packing sealing device 21 . In the present invention, the flexible connection pipe 20 between the movable water inlet and the movable water supply pipe 18, and the movable water outlet and the movable water return pipe 19 are all arranged on the outside, so that the use environment of the movable part has been greatly improved, and it is more conducive to maintenance. , while improving the service life.

The structure of each fixed water-cooled grate sheet group 4 in the present invention is consistent with the structure of each movable water-cooled grate sheet group 6, and each movable water-cooled grate sheet group 6 moves back and forth horizontally with the corresponding movable wall panel 5 respectively. , and do not interfere with the corresponding fixed water-cooled grate sheet groups 4; wherein, each fixed water-cooled grate sheet group 4 includes a water-cooled grate sheet 41, a connecting bolt 42 and a gasket 43, and each water-cooled grate sheet 41 includes a grate sheet 41. The sheet body 411, the web 414, the secondary water supply pipe 415, the secondary water return pipe 416, the water inlet 417 and the water outlet 418; as shown in Figures 6 to 9, each grate sheet body 411 is integrally cast and formed, and its The abdomen is formed with a cooling area composed of a plurality of cooling water channels, and the cooling area is divided into a water inlet pipe area 412 and a return water pipe area 413 by corresponding webs 414 respectively, and each water inlet pipe area 412 and a corresponding return water pipe area 413 communicate with each other at the tail and form a relatively sealed space; on the head of each grate piece body 411, a secondary water supply pipe 415 and a secondary water return pipe 416 are respectively cast and formed, and each secondary water supply pipe 415 corresponds to The water inlet pipe area 412 is sealed and communicated, and each secondary water return pipe 416 is sealed and communicated with the corresponding water return pipe area 413 respectively; each grate piece body 411 is also provided with a water inlet 417 and a water outlet 418 respectively. The water outlet 417 is in sealing communication with the corresponding secondary water supply pipe 415, and each water outlet 418 is in sealing communication with the corresponding secondary water return pipe 416 respectively;

As shown in FIGS. 1 to 9 , several water-cooled grate pieces 41 are arranged side by side in order, and the adjacent water-cooled grate pieces 41 are respectively fixed together by connecting bolts 42 . The adjacent secondary water return pipes 416 are respectively sealed and communicated through the sealing gasket 43; the secondary water supply pipe 415 ports and the secondary water return pipe 416 ports of the two outermost water-cooled grate pieces 41 are sealed and blocked respectively, and except for the middle water-cooled furnace. For the sheet 41, the water inlet 417 and the water outlet 418 of all the remaining water-cooled grate sheets 41 are sealed and blocked respectively, and a cyclic fixed water-cooled grate sheet group 4 is formed. In the present invention, the fixed water-cooled grate sheet group 4 and the movable water-cooled grate sheet group 6 both adopt a combined design, and both are connected with several water-cooled grate sheets 41 in series, and the secondary water supply pipe 415 and the secondary water return pipe 416 are respectively integrally cast in the Corresponding to the inside of the water-cooled grate sheet 41, the cooling effect is better, the required number of pipe joints is reduced, and the stability of operation and cooling of the grate sheet is greatly improved.

Beneficial effects of the present invention:

(1) In the present invention, the fixed water-cooled grate sheet group 4 and the movable water-cooled grate sheet group 6 all adopt the water-cooling cooling mode, and its cooling effect is better;

(2) In the present invention, both the fixed water-cooled grate sheet group 4 and the movable water-cooled grate sheet group 6 adopt a combined design, and both are connected in series with several water-cooled grate sheets 41, and the secondary water supply pipe 415 and the secondary water return pipe 416 are respectively designed. The whole is poured inside the corresponding water-cooled grate pieces 41, which makes the cooling effect better, reduces the required number of pipe joints, and greatly improves the stability of operation and cooling of the grate pieces;

(3) In the present invention, the flexible connection pipe 20 between the movable water inlet and the movable water supply pipe 18, and the movable water outlet and the movable water return pipe 19 are all arranged on the outside, so that the use environment of the movable part is greatly improved, and more Conducive to repair and maintenance, while improving the service life;

(4) The present invention can process the domestic garbage with a calorific value of more than 2000Kcal/kg, the larger the incineration treatment capacity, the larger the grate surface, and the combined design of a plurality of fixed water-cooled grate sheet groups 4 and movable water-cooled grate sheet groups 6 is adopted, The water cooling effect is controlled, and the independent secondary water cooling pipeline is more conducive to the maintenance of on-site use.

The above-mentioned embodiments are only the preferred embodiments of the present invention to describe, and do not limit the concept and scope of the present invention. Various modifications and improvements made should fall within the protection scope of the present invention, and the technical content of the claimed protection of the present invention has been fully recorded in the technical requirements.

Claims

A large-scale domestic waste water-cooled grate furnace is characterized in that: it includes fixed wall panels, movable wall panels, fixed water-cooled grate slice groups, movable water-cooled grate slice groups, hinged shafts, driving mechanisms, fixed grate connection frames and movable furnaces Row connecting frame; the two fixed wall panels are vertically arranged at left and right intervals, and their two ends are respectively welded together vertically with the front wall panel and the rear wall panel to form an integral grate frame; on the two fixed walls There are also two movable wall panels vertically and parallelly spaced between the panels along the length direction thereof. The two movable wall panels are arranged in a collinear space at the front and rear, and the two are connected by a hinged shaft, and are located close to the rear wall panel. The rear end of the corresponding movable wall panel is also provided with a driving mechanism, and under the driving of the driving mechanism, the two movable wall panels do a back-and-forth horizontal movement; between the upper ends of the two fixed wall panels along their length There are also several fixed grate connecting frames at intervals in the direction, and the corresponding position of each movable wall panel respectively passes through the lower part of the corresponding fixed grate connecting frame on the two fixed wall panels, and is in each of the fixed grate connecting frames. The upper end of the movable wall panel is also provided with several movable grate connecting frames at intervals along its length direction; each of the fixed grate connecting frames and each of the movable grate connecting frames are alternately distributed at intervals, and in each A fixed water-cooled grate plate group is also arranged horizontally and longitudinally on the fixed grate connecting frame, and a movable water-cooled grate plate group is also arranged horizontally and longitudinally on each movable grate connecting frame.
A large-scale domestic waste water-cooled grate furnace according to claim 1, characterized in that: it further comprises a support wheel, a guide wheel and a support plate; the upper position between the two fixed wall plates along its length direction also A number of support wheels are spaced in sequence, and a number of guide wheels are arranged at the bottom of each movable wall panel along its length direction; the setting positions of each of the guide wheels are respectively corresponding to the setting positions of the support wheels Correspondingly, the guide wheels on each of the movable wall panels are respectively supported on the corresponding support wheels between the two fixed wall panels through the support plates, and the guide wheels are used to ensure the left and right when the movable wall panels move back and forth. Offset.
A large-scale domestic waste water-cooled grate furnace according to claim 2, characterized in that: the driving mechanism comprises a bearing seat, a main transmission shaft and a hydraulic cylinder; There are also two bearing seats symmetrically arranged on the left and right sides, and a main drive shaft is also installed on the two bearing seats; a hydraulic cylinder is also inclined and fixed at the rear wall plate between the two fixed wall plates. And the output end of the hydraulic cylinder is inclined upward in the direction corresponding to the movable wall plate; two sets of cranks are also arranged on the main drive shaft; The crank on the rear wall panel corresponding to the movable wall panel is hinged, and another group of cranks on the main drive shaft is hinged with the output end of the hydraulic cylinder; the hydraulic cylinder pushes the crank on the main drive shaft, and then through the connection The rod mechanism drives the crank on the movable wall panel to convert the circular arc reciprocating motion of the main drive shaft into the front and rear reciprocating horizontal motion of the movable panel.
The large-scale domestic waste water-cooled grate furnace according to claim 1, wherein the upper end of each fixed grate connecting frame and the upper end of each movable grate connecting frame are further provided with lugs respectively. board, each of the fixed water-cooled grate pieces is fixedly connected to the lug plate corresponding to the fixed grate connecting frame through a pin, and each of the movable water-cooled grate pieces is connected to the corresponding movable furnace through a pin. The ear plate of the row connection frame is fixedly connected.
A large-scale domestic waste water-cooled grate furnace according to claim 4, wherein the structure of each fixed water-cooled grate group is consistent with the structure of each movable water-cooled grate group, and each 1. The movable water-cooled grate sheet group moves back and forth horizontally along with the corresponding movable wall panels, and does not interfere with the corresponding fixed water-cooled grate sheet group.
A large-scale domestic waste water-cooled grate furnace according to claim 5, characterized in that: it further comprises a first-level water supply pipe and a first-level return water pipe; A water supply pipe and a primary return water pipe, and several branch pipes are also vertically fixed on one side of each fixed grate connecting frame. The water outlet is in sealed communication, and the water outlet of each fixed water-cooled grate sheet group is in sealed communication with the primary water return pipe through a branch pipe respectively, and a cycle is formed.
A large-scale domestic waste water-cooled grate furnace according to claim 6, characterized in that: it further comprises a movable water supply pipe, a movable return water pipe and a flexible connection pipe; A water supply pipe and a movable water return pipe, and the movable water supply pipe and the movable water return pipe are respectively fixed on the corresponding movable wall panels through clamps; one end of the movable water supply pipe is respectively connected with the The water inlet is sealed and communicated, and the other end of the water inlet vertically extends out of the rear wall plate, and is in sealing communication with the first-level water supply pipe through a flexible connecting pipe; one end of the movable water return pipe is respectively connected with the The water outlet is in sealed communication, and the other end of the water outlet extends vertically out of the rear wall panel, and is in sealed communication with the primary water return pipe through a flexible connection pipe.
A large-scale domestic waste water-cooled grate furnace according to claim 7, characterized in that: further comprising a pressing packing sealing device; the other end of the movable water return pipe and the other end of the movable water supply pipe are respectively squeezed The pressure packing root sealing device is sealingly connected with the rear wall panel.
A large-scale domestic waste water-cooled grate furnace according to claim 6, wherein each of the fixed water-cooled grate pieces comprises a water-cooled grate piece, a connecting bolt and a gasket, and each of the water-cooled grate pieces All include a grate piece body, a web, a secondary water supply pipe, a secondary water return pipe, a water inlet and a water outlet; each said grate piece body is integrally cast and formed, and its abdomen is formed with a plurality of cooling water channels. The cooling area is divided into a water inlet pipe area and a return water pipe area by corresponding webs respectively, each of the water inlet pipe area and the corresponding return water pipe area space; a secondary water supply pipe and a secondary water return pipe are also cast and formed at the head of each of the grate pieces, and each secondary water supply pipe is in sealed communication with the corresponding water inlet pipe area, and each The secondary water return pipes are respectively in sealed communication with the corresponding water return pipe areas; a water inlet and a water outlet are respectively provided on each of the grate piece bodies, and each of the water inlets are respectively in sealing communication with the corresponding secondary water supply pipes, And each of the water outlets is in sealing communication with the corresponding secondary water return pipe, respectively.
A large-scale domestic waste water-cooled grate furnace according to claim 9, characterized in that: a plurality of the water-cooled grate pieces are arranged in parallel and attached in sequence, and the adjacent water-cooled grate pieces are respectively fixed to each other by connecting bolts. together, and connect the adjacent secondary water supply pipes and the adjacent secondary water return pipes through sealing gaskets respectively; connect the secondary water supply pipe ports and the secondary return water pipe ports of the two outermost water-cooled grate pieces They are sealed and blocked respectively, and except for the middle one of the water-cooled grate pieces, the water inlets and the water outlets of all the other water-cooled grate pieces are sealed and blocked respectively to form a recyclable fixed water-cooled grate piece group.