CN217653858U

CN217653858U - Water-cooled solid waste incineration grate

Info

Publication number: CN217653858U
Application number: CN202220992244.2U
Authority: CN
Inventors: 顾小勤
Original assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Current assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-10-25
Anticipated expiration: 2032-04-27

Abstract

The utility model relates to a gu useless incineration facility technical field, specifically be a grate is burned admittedly to water-cooled, it can effectively promote the cooling effect, guarantee the life of grate segment, use cost is reduced, promote useless treatment effeciency and the effect admittedly, it includes the grate steelframe and sets up the grate subassembly on the grate steelframe, grate subassembly below is the plenum, the grate subassembly includes movable grate and fixed grate, movable grate passes through the walking beam frame attach drive assembly of bottom, be provided with condenser tube on movable grate and the fixed grate respectively, the female pipe of intaking is connected to condenser tube one end, the female pipe of other end connection water outlet, the female pipe of intaking is connected outside inlet channel and outside outlet channel through the intermediate junction pipe with the female pipe of outlet, the intermediate junction pipe that fixed grate corresponds is fixed in on the grate steelframe, the intermediate junction pipe that movable grate corresponds connects drive assembly and walking beam frame, set up the baffle in the intermediate junction pipe and separate outlet channel and outlet channel.

Description

Water-cooled solid waste incineration grate

Technical Field

The utility model relates to a gu useless incineration facility technical field specifically is a grate is burnt to useless admittedly of water-cooled.

Background

China is one of the countries with the largest solid waste generation amount in the world, more than 100 hundred million tons of solid waste are newly added in the country every year, and the situation of annual increase is presented. Waste enclosing cities and solid wastes are difficult to be consumed, so that the waste enclosing cities and the solid wastes become heavy burden for the development of some cities, and the huge solid wastes accumulate the stockpiling quantity and the annual production quantity, if the solid wastes are not properly treated and utilized, the environment is seriously polluted, and the resources are greatly wasted. The incineration treatment has obvious reduction effect and is beneficial to realizing the resource utilization of solid wastes, so that the incineration treatment becomes the mainstream of the solid waste disposal technology.

Traditional solid waste incineration grate all adopts bottom forced air cooling form, and the cooling effect is not good, and when burning with the solid useless of high calorific value, the grate segment temperature rise hardness reduces, and the life of grate segment reduces, needs often to change the maintenance, has increased the cost, also can cause the influence to the treatment effeciency and the effect of solid useless simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the current grate that burns admittedly cooling effect poor, life is short, and is with high costs, influences the poor problem of treatment effeciency and effect useless admittedly, the utility model provides a grate is burnt admittedly to water-cooled, it can effectively promote the cooling effect, guarantees the life of grate segment, reduces use cost, promotes useless treatment effeciency and the effect admittedly.

The technical scheme is as follows: the utility model provides a water-cooled solid useless fire grate that burns, its include the grate steelframe with set up in the grate subassembly on the grate steelframe, the grate subassembly below is the plenum, the grate subassembly includes movable grate and fixed grate, the movable grate passes through the walking beam frame joint drive assembly of bottom, its characterized in that, the movable grate with be provided with condenser tube on the fixed grate respectively, condenser tube one end is connected into the main pipe of water, the other end is connected out the main pipe of water, the main pipe of water inlet with the main pipe of water outlet passes through the outside inlet channel of middle connecting pipe connection and outside outlet channel, the fixed grate corresponds middle connecting pipe is fixed in on the grate steelframe, the movable grate corresponds middle connecting pipe connect drive assembly with the walking beam frame, set up the baffle in the middle connecting pipe and divide into water inlet channel and outlet channel.

The fire grate is further characterized in that a sliding plate component is arranged on the fire grate steel frame, and the movable beam framework is supported on the sliding plate component;

the water inlet main pipe and the water outlet main pipe are connected with the cooling water pipe through distribution branch pipes, and the cooling water pipe is a coiled pipe;

the water inlet main pipe and the water outlet main pipe corresponding to the movable grate are arranged in the middle of the grate steel frame, and the water inlet main pipe and the water outlet main pipe corresponding to the fixed grate are arranged at positions close to the outer side of the grate steel frame;

two middle baffles are arranged in the middle of the grate steel frame, side baffles are arranged on two sides of the grate steel frame respectively, a movable ring is fixed on the outer side of each side baffle, the movable ring is transversely slidably mounted on the grate steel frame, a fixed ring is fixed on the grate steel frame, the movable ring is connected with the fixed ring through a side spring, a spring support is arranged between the two middle baffles, middle springs are arranged between two sides of the spring support and the two middle baffles respectively, and an upper baffle is arranged above the middle baffle;

the upper part of the middle baffle is provided with an insertion block, and two sides of the upper baffle are provided with slots matched with the insertion block;

the fire grate component is sequentially divided into a drying fire grate, a combustion fire grate and an after-burning fire grate from high to low, and high drop heights of more than 1.4 meters are arranged between the drying fire grate and the combustion fire grate and between the combustion fire grate and the after-burning fire grate;

the front ends of the drying grate, the combustion grate and the burn-out grate are all provided with shielding plates.

After the utility model is adopted, on the basis of the air cooling of the original grate, a water cooling system is added, cooling water enters from an outer side water inlet pipeline, flows through a water inlet main pipe and a cooling water pipe, cools the grate segment, and then is sent out from a water outlet main pipe and an outer side water outlet pipeline, and the working temperature of the grate segment can be greatly lower than the allowable value of casting materials together with the air cooling, so that the service life of the grate is ensured, the times of maintenance and replacement are reduced, the use cost is reduced, and the treatment efficiency and the treatment effect of solid waste are improved; furthermore, the movable beam frame is supported on the sliding plate assembly, the abrasion degree is delayed, the service life is prolonged, expansion compensation mechanisms formed by springs and baffles are arranged on the two sides and the middle of the fire grate, the slag leakage amount is reduced, the incomplete combustion loss of boiler machinery is reduced, the total thermal efficiency of the boiler is improved, a large drop is arranged between different fire grates, the solid waste is overturned and loosened, and the solid waste burnout is accelerated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 5 is a schematic view of the arrangement of the cooling water pipes of the movable grate;

FIG. 6 is a schematic view of the arrangement of cooling water pipes of the fixed grate;

FIG. 7 is an enlarged view of D in FIG. 2

Fig. 8 is an enlarged schematic view of E in fig. 2.

Detailed Description

As shown in figures 1 to 8, the water-cooled solid waste incineration grate comprises a grate steel frame 3 and a grate component 2 arranged on the grate steel frame 3, an air chamber is arranged below the grate component 2, the grate component 2 is sequentially divided into a drying grate 2-1, a combustion grate 2-2 and an after-burning grate 2-3 from top to bottom, elevation drops of more than 1.4 m are arranged between the drying grate and the combustion grate and between the combustion grate and the after-burning grate, shielding plates 1 are arranged at the front ends of the drying grate, the combustion grate and the after-burning grate respectively and can prevent solid waste from being brought into the air chamber at the lower part when a movable grate 2-4 in the grate component 2 reciprocates, the drying grate 2-1, the combustion grate 2-2 and the after-burning grate 2-3 respectively comprise a movable grate 2-4 and a fixed grate 2-5, the movable fire grate 2-4 is connected with a driving component 5 through a movable beam frame 4 at the bottom, cooling water pipes 8 are respectively arranged on the movable fire grate 2-4 and the fixed fire grate 2-5, the cooling water pipes adopt coil pipes and can cover more cooling areas, one end of each cooling water pipe 8 is connected with a water inlet main pipe 8-1 through a distribution branch pipe 8-3, the other end of each cooling water pipe 8 is connected with a water outlet main pipe 8-2 through a distribution branch pipe 8-3, the water inlet main pipe 8-1 and the water outlet main pipe 8-2 are connected with an external water inlet pipeline 8-5 and an external water outlet pipeline 8-6 through an intermediate connecting pipe 8-4, the intermediate connecting pipe 8-4 corresponding to the fixed fire grate 2-5 is fixed on the fire grate steel frame 3 and is fixedly arranged, the intermediate connecting pipe 8-4 corresponding to the movable fire grate 2-4 is connected with a connecting component 6 between the driving component 5 and the movable beam frame 4, the connecting rod assembly 6 can be used for transmission and is hollow inside and can be used for water supply, a partition plate 8-7 is arranged in the middle connecting pipe 8-4 to divide a water inlet channel 8-8 and a water outlet channel 8-9, and the middle connecting pipe 8-4 corresponding to the movable grate 2-4 moves along with the movable grate 2-4, so that the outer water inlet pipeline 8-5 and the outer water outlet pipeline 8-6 are connected with metal hoses 8-10. In order to ensure the sealing performance of the middle connecting pipe 8-4, a sealing component 7 is arranged at the position penetrating through the grate steel frame 3 to prevent primary air in the air chamber from escaping outwards.

The grate steel frame 3 is provided with a sliding plate assembly 9, the movable beam frame 4 is supported on the sliding plate assembly 9 and consists of a plurality of stainless steel plates and oil-free sliding plate friction pairs, and supporting and smooth sliding are realized. The fire grate adjusting mechanism 10 in the drawing is a thread mechanism for adjusting the integral levelness of the fire grate during field installation, so that the fire grate can be conveniently installed on the field and quickly reach the required installation precision.

The main water inlet pipe 8-1 and the main water outlet pipe 8-2 corresponding to the movable grate 2-4 are arranged in the middle of the grate steel frame 3, the main water inlet pipe 8-1 and the main water outlet pipe 8-2 corresponding to the fixed grate 2-5 are arranged at positions close to the outer side of the grate steel frame 3, the main water inlet pipe 8-1 and the main water outlet pipe 8-2 are staggered up and down, and the embodiment is characterized in that the main water inlet pipe 8-1 and the main water outlet pipe 8-2 are arranged in an upper-in and lower-out mode.

Two middle baffles 11 are arranged in the middle of the fire grate steel frame 3, side baffles 12 are arranged on two sides of the fire grate steel frame 3 respectively, movable rings 13 are fixed on the outer sides of the side baffles 12, the movable rings 13 are transversely slidably mounted on the fire grate steel frame 3, fixed rings 14 are fixed on the fire grate steel frame 3, the movable rings 13 are connected with the fixed rings 14 through side springs 15, spring supports 16 are arranged between the two middle baffles 11, middle springs 17 are arranged between two sides of each spring support 16 and the two middle baffles 11 respectively, an upper baffle 18 is arranged above the middle baffle 11, an insertion block is arranged on the upper portion of each middle baffle 11, and insertion slots matched with the insertion blocks are arranged on two sides of each upper baffle 18, so that the upper baffles 18 can be fixed and cannot fall off; the preset pressing force of the side baffle and the fire grate segment is realized through the preset spring mounting height, so that on one hand, the gap between the side baffle and the fire grate segment is basically eliminated, and the material leakage at the position is prevented; on the other hand, the fire grate segment is prevented from being pressed too tightly with the baffles on the two sides after thermal expansion, and abrasion between the side baffles and the fire grate segment is increased. Through the combined action of the side baffle plates 12 and the middle baffle plate 11, the whole grate moving part is positioned at the position required by design, and even when the grate runs in a hot state, the slag leakage quantity at the gaps between the two sides of the grate and the grate segments is still small.

The utility model discloses a every group grate can be divided into single-row or multiseriate module according to the difference of solid useless handling capacity in width direction. Each functional module is independently manufactured in a factory, and the complete water-cooling solid waste incineration grate can be combined after the functional modules are quickly assembled in a construction site. The fire grate segments in each functional module are alternately arranged at movable and fixed intervals in the front-back direction.

Claims

1. The utility model provides a grate is burnt to water-cooled admittedly, its include the grate steelframe with set up in grate subassembly on the grate steelframe, grate subassembly below is the plenum, the grate subassembly includes movable grate and fixed grate, movable grate passes through the walking beam frame attach drive assembly of bottom, a serial communication port, movable grate with be provided with condenser tube on the fixed grate respectively, the female pipe of a water outlet is connected to condenser tube one end, the other end, the female pipe of intaking with the female pipe of a water outlet connects outside inlet channel and outside outlet channel through middle connecting pipe, fixed grate corresponds middle connecting pipe is fixed in on the grate steelframe, movable grate corresponds middle connecting pipe connect drive assembly with the walking beam frame, set up the baffle in the middle connecting pipe and divide into water inlet channel and outlet channel.

2. The water-cooled solid waste incineration grate of claim 1, wherein a sliding plate assembly is arranged on the grate steel frame, and the movable beam frame is supported on the sliding plate assembly.

3. The water-cooled solid waste incineration grate of claim 1, wherein the water inlet main pipe and the water outlet main pipe are connected with the cooling water pipe through distribution branch pipes, and the cooling water pipe is a coiled pipe.

4. The water-cooled solid waste incineration grate of claim 1, wherein the main water inlet pipe and the main water outlet pipe corresponding to the movable grate are arranged at the middle position of the grate steel frame, and the main water inlet pipe and the main water outlet pipe corresponding to the fixed grate are arranged at the position close to the outer side of the grate steel frame.

5. The water-cooled solid waste incineration grate of claim 1, wherein two middle baffles are arranged in the middle of the grate steel frame, side baffles are arranged on two sides of the grate steel frame respectively, a movable ring is fixed on the outer side of each side baffle, the movable ring is transversely slidably mounted on the grate steel frame, a fixed ring is fixed on the grate steel frame, the movable ring is connected with the fixed ring through a side spring, a spring support is arranged between the two middle baffles, middle springs are arranged between two sides of the spring support and the two middle baffles respectively, and an upper baffle is arranged above the middle baffles.

6. The water-cooled solid waste incineration grate of claim 5, wherein the upper portion of the middle baffle is provided with an insert block, and slots matched with the insert block are arranged on two sides of the upper baffle.

7. The water-cooled solid waste incineration grate of claim 1, wherein the grate assembly is divided into a drying grate, a combustion grate and an after-burning grate in sequence from high to low, and height drops of more than 1.4 meters are arranged between the drying grate and the combustion grate and between the combustion grate and the after-burning grate.

8. The water-cooled solid waste incineration grate of claim 7, wherein the front ends of the drying grate, the combustion grate and the burn-out grate are provided with shielding plates.