CN213577422U

CN213577422U - Waste heat boiler returns ash to carry and uses zip fastener machine

Info

Publication number: CN213577422U
Application number: CN202022592705.0U
Authority: CN
Inventors: 李朝晖; 刘钢; 王黎明; 赵米晗; 考传利; 李娜; 张皓; 周静; 仲崇仁; 胡鹏; 张斌; 窦世艳; 邱振夏; 田丰; 胡计伟; 王瑛; 胡晓路; 汤钱龙; 梁书源
Original assignee: Anhui Conch Kawasaki Engineering Co Ltd; Shanghai Conch Kawasaki Energy Conservation and Environmental Protection Engineering Co Ltd
Current assignee: Anhui Conch Kawasaki Engineering Co Ltd; Shanghai Conch Kawasaki Energy Conservation and Environmental Protection Engineering Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-06-29
Anticipated expiration: 2030-11-11

Abstract

A zipper machine for conveying ash of a waste heat boiler belongs to the technical field of zipper machine structures, and is arranged beside the waste heat boiler close to the kiln tail of a cement kiln, and comprises a material conveying bin enclosed by a bottom plate and side walls at two sides, the inner sides of the bottom plate and the side walls are clamped and positioned with serpentine heat exchange tubes, a main water inlet pipeline and a main water outlet pipeline are also arranged inside the bottom plate, water inlets of the serpentine heat exchange tubes are connected with the main water inlet pipeline, water outlets of the serpentine heat exchange tubes are connected with the main water outlet pipeline, the main water outlet pipeline is connected with the main water inlet pipeline through a cooling water tank and a circulating water pump, the utility model has the advantages that, the zipper machine is simple in overall structure, convenient to maintain, good in cooling and conveying effects, capable of reducing the construction cost of other equipment, reducing the power consumption of a cement production line, improving the cement production efficiency and reducing the cement production cost.

Description

Waste heat boiler returns ash to carry and uses zip fastener machine

Technical Field

The utility model relates to a zip fastener machine technical field especially relates to a waste heat boiler returns ash and carries and use zip fastener machine.

Background

The method is characterized in that the ash return conveying of the waste heat boiler at the tail and the head of the cement kiln is a key for normal operation of the waste heat boiler, in order to save manufacturing cost, the ash return of the waste heat boiler is connected to a cement production line material and clinker conveying system nearby, wherein the ash return temperature of the waste heat boiler at the tail of the cement kiln is higher and ranges from 200 ℃ to 360 ℃, the ash return is mainly raw material dust, the ash return closest to the waste heat boiler at the tail of the cement kiln is lifted by a rubber belt bucket, the temperature resistance of the rubber belt is about 100 ℃, the long-term over-temperature operation of the rubber belt directly influences the lifting service life of the rubber belt bucket, and whether the rubber belt normally operates or not plays a role in determining the operation of the kiln system. The scheme not only causes the waste of equipment, but also increases the power consumption of a cement production line, reduces the conveying efficiency of returned ash, simultaneously reduces the efficiency of cement production, and also increases the production cost of cement and the maintenance cost of equipment.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a waste heat boiler returns ash to carry and uses zip fastener machine reforms transform through the structure to original zip fastener machine, makes it have the function that the cooling was carried, will return ash and carry the direct cement kiln feed through the sticky tape fill after carrying and cooling through the zip fastener machine of this kind of structure, has reduced the power consumption of cement manufacture line, has improved cement manufacture's efficiency, has reduced cement manufacture's cost.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: waste heat boiler returns ash to carry and uses zip fastener machine sets up by the waste heat boiler who is close to cement kiln tail department, includes the defeated feed bin that is enclosed by the lateral wall of bottom plate and both sides, the equal joint location in inboard of bottom plate and lateral wall has snakelike heat exchange tube, the inside of bottom plate still is provided with into water main pipe and play water main pipe, the water inlet of snakelike heat exchange tube all with it links to each other to intake the water main pipe, the delivery port of snakelike heat exchange tube all with play water main pipe links to each other, play water main pipe pass through coolant tank and circulating water pump with it links to each other to intake the water main pipe.

Furthermore, the snakelike heat exchange tube on bottom plate or the lateral wall is provided with the multiunit, and multiunit snakelike heat exchange tube lays along the length direction of bottom plate or lateral wall.

Furthermore, an electric control switch valve is respectively arranged at the water inlet and the water outlet of each group of the snakelike heat exchange tubes; and a water outlet of the cooling water tank is connected with a filter.

Further, bottom plate and lateral wall all set up to the layered composite structure, have set gradually fixed mounting layer, insulating layer and outside protective layer from inside to outside, fixed mounting layer and outside protective layer are formed by steel sheet processing, the insulating layer sets up to the heat insulating board, the periphery seal welding of fixed mounting layer and outside protective layer will the insulating layer cladding is in the centre.

Further, evenly weld on the fixed mounting layer has a plurality of pipe casings, the pipe casing sets up to the cross-section for the best curved piece that cup joints, including opening and joint portion, the opening orientation the inside of bottom plate and lateral wall, the external diameter of snakelike heat exchange tube is greater than the width of opening just is less than the internal diameter of joint portion.

Furthermore, the bottom ends of the serpentine heat exchange tubes on the bottom plate and the serpentine heat exchange tubes on the side walls are separated by a certain distance in the vertical direction.

The utility model has the advantages that:

1. the utility model discloses a bottom plate and the lateral wall of zip fastener machine install snakelike heat exchange tube, condensate water through circulating water pump in with cooling water tank is in the snakelike heat exchange tube of water main pipe feed, realized the cooling to wherein material at the defeated material in-process of zip fastener machine, the temperature of cement kiln tail exhaust-heat boiler ash return has been reduced, the sticky tape fill that can direct access quantity production line nearby is carried, the ash zipper machine has been reduced back, the setting of rotary valve and affiliated platform, engineering cost is reduced, the power consumption of cement manufacture line has been reduced, and the efficiency of ash transmission has been improved back, the efficiency of cement manufacture has been improved, the cost of cement manufacture has been reduced.

2. The utility model discloses a lay multiunit snakelike heat exchange tube along the length direction of bottom plate or lateral wall, the water inlet and the delivery port department of every snakelike heat exchange tube of group set up automatically controlled ooff valve respectively, have both reduced the water side pressure loss of snakelike heat exchange tube, but also can select the snakelike heat exchange tube work of relevant position department as required, have further reduced the energy consumption, and coolant tank's delivery port department connects the filter moreover, has prevented that the interior deposit incrustation scale of snakelike heat exchange tube and the condition that blocks up the pipeline appears.

3. The heat insulation plates are arranged inside the bottom plate and the side wall, so that the problem that the heat exchange efficiency is influenced by the rising of the water temperature in the serpentine heat exchange pipe due to the high outdoor temperature in summer is solved, and the problem that the water in the serpentine heat exchange pipe is frozen due to the too low outdoor temperature in winter is solved; the utility model discloses an inboard a plurality of cross-sections of welding of bottom plate and curb plate make its opening inwards for excellent curved pipe box, make snakelike heat exchange tube get into the back joint in joint portion by the opening, make the location of snakelike heat exchange tube convenient more stable, the maintenance in the snakelike heat exchange tube later stage of also being convenient for is changed moreover.

To sum up, this zip fastener machine overall structure is simple, easy maintenance, and the cooling is carried effectually, has reduced the engineering cost of other equipment, has reduced the power consumption of cement manufacture line, has improved the efficiency of cement production, has reduced the cost of cement production.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

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

FIG. 2 is a schematic structural view of the middle water cooling system of the present invention;

FIG. 3 is a schematic structural view of the connection between the middle bottom plate or the side plate and the serpentine heat exchange tube of the present invention;

the labels in the above figures are: 1. the heat exchanger comprises a bottom plate, 11 parts of a fixed installation layer, 12 parts of a heat insulation layer, 13 parts of an external protection layer, 2 parts of side walls, 3 parts of a serpentine heat exchange tube, 4 parts of a water inlet main pipeline, 5 parts of a water outlet main pipeline, 6 parts of a cooling water tank, 7 parts of a circulating water pump, 8 parts of an electric control switch valve, 9 parts of a filter, 10 parts of a pipe sleeve, 101 parts of an opening part, 102 parts of a clamping part.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in figures 1 and 2, the zipper machine for conveying the ash of the waste heat boiler at the tail of the cement kiln comprises a conveying bin which is enclosed by a bottom plate 1 and side walls 2 at two sides, serpentine heat exchange tubes 3 are clamped and positioned at the inner sides of the bottom plate 1 and the side walls 2, a water inlet main pipeline 4 and a water outlet main pipeline 5 are further arranged inside the bottom plate 1, water inlets of the serpentine heat exchange tubes 3 are connected with the water inlet main pipeline 4, water outlets of the serpentine heat exchange tubes 3 are connected with the water outlet main pipeline 5, the water outlet main pipeline 5 is connected with the water inlet main pipeline 4 through a cooling water tank 6 and a circulating water pump 7, condensed water in the cooling water tank 6 is supplied into the heat exchange tubes 3 through the water inlet main pipeline 4 through the circulating water pump 7, so that the cooling of materials in the conveying process of the zipper machine is realized, the temperature of the ash return of the waste heat boiler at the tail of the cement kiln is reduced, the zipper machine can be directly connected to adhesive tape buckets of a production, the arrangement of the ash returning zipper machine, the rotary valve and the auxiliary platform is reduced, the construction cost is reduced, the power consumption of a cement production line is reduced, the ash returning transmission efficiency is improved, the cement production efficiency is improved, and the cement production cost is reduced.

Specifically, as shown in fig. 2, a plurality of groups of serpentine heat exchange tubes 3 are arranged on the bottom plate 1 or the side wall 2, and the plurality of groups of serpentine heat exchange tubes 3 are laid along the length direction of the bottom plate 1 or the side wall 2, and the laying of the plurality of groups of serpentine heat exchange tubes 3 reduces the pressure loss of the water side of the serpentine heat exchange tubes, so that the pressure loss of the water side can be controlled within 0.1 MPa; moreover, the water inlet and the water outlet of each group of the serpentine heat exchange tubes 3 are respectively provided with an electric control switch valve 8, the serpentine heat exchange tubes 3 at corresponding positions can be selected to work as required, and the energy consumption is further reduced; the water outlet of the cooling water tank 6 is connected with a filter 9, so that the condition that the pipeline is blocked due to the deposition of water scale in the snake-shaped heat exchange pipe 3 is prevented.

Specifically, as shown in fig. 3, the bottom plate 1 and the side wall 2 are both arranged in a layered composite structure, a fixed mounting layer 11, a heat insulation layer 12 and an external protection layer 13 are sequentially arranged from inside to outside, the fixed mounting layer 11 and the external protection layer 13 are both formed by processing steel plates, the heat insulation layer 12 is arranged in a heat insulation plate, the peripheries of the fixed mounting layer 11 and the external protection layer 13 are hermetically welded, the heat insulation layer 12 is wrapped in the middle, the problem that the heat exchange efficiency is affected due to the fact that the temperature of the inside of the serpentine heat exchange tube 3 is high due to the fact that the outdoor temperature is high in summer is prevented by the heat insulation plate 12 arranged in the bottom plate 1 and the side wall 2, and meanwhile, the.

Wherein fixed mounting layer 11 on evenly weld have a plurality of pipe casings 10, pipe casing 10 sets up to the cross-section for excellent curved cup joint spare, including opening 101 and joint portion 102, opening 101 is towards the inside of bottom plate 1 and lateral wall 2, and snakelike heat exchange tube 3's external diameter is greater than the width of opening 101 and is less than the internal diameter of joint portion 102, makes snakelike heat exchange tube 3 get into the back joint in joint portion 102 by opening 101, makes snakelike heat exchange tube 3's location convenient more stable, and the maintenance in 3 later stages of snakelike heat exchange tube of also being convenient for is changed.

In addition, in order to make the cooling more uniform, the serpentine heat exchange tube 3 on the bottom plate 1 is separated from the bottommost end of the serpentine heat exchange tube 3 on the side wall 2 by a distance in the vertical direction, and the distance is equal to the distance between two adjacent bending channels of the serpentine heat exchange tube 3.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. The utility model provides a waste heat boiler returns ash to carry and uses zip fastener machine, its characterized in that sets up by the waste heat boiler who is close to cement kiln tail department, includes the defeated feed bin that encloses by lateral wall (2) of bottom plate (1) and both sides, the equal joint location in inboard of bottom plate (1) and lateral wall (2) has snakelike heat exchange tube (3), the inside of bottom plate (1) still is provided with into water main pipe way (4) and play water main pipe way (5), the water inlet of snakelike heat exchange tube (3) all with into water main pipe way (4) link to each other, the delivery port of snakelike heat exchange tube (3) all with play water main pipe way (5) link to each other, play water main pipe way (5) through cooling water tank (6) and circulating water pump (7) with into water main pipe way (4) link to each other.

2. The waste heat boiler returns ash to be carried and uses zip fastener machine of claim 1 characterized in that: the serpentine heat exchange tubes (3) on the bottom plate (1) or the side wall (2) are provided with multiple groups, and the multiple groups of serpentine heat exchange tubes (3) are laid along the length direction of the bottom plate (1) or the side wall (2).

3. The waste heat boiler returns ash to be carried and uses zip fastener machine of claim 2 characterized in that: an electric control switch valve (8) is respectively arranged at the water inlet and the water outlet of each group of the snakelike heat exchange tubes (3); and a filter (9) is connected to the water outlet of the cooling water tank (6).

4. The waste heat boiler ash returning and conveying zipper machine according to any one of claims 1 to 3, characterized in that: bottom plate (1) and lateral wall (2) all set up to the layered composite structure, have set gradually fixed mounting layer (11), insulating layer (12) and outside protective layer (13) from inside to outside, fixed mounting layer (11) and outside protective layer (13) are formed by steel sheet processing, insulating layer (12) set up to the heat insulating board, the periphery seal weld of fixed mounting layer (11) and outside protective layer (13) will insulating layer (12) cladding is in the centre.

5. The waste heat boiler returns ash to be carried and uses zip fastener machine of claim 4 characterized in that: evenly welded has a plurality of pipe casings (10) on fixed mounting layer (11), pipe casing (10) set up to the cross-section for the best curved socket joint spare, including opening (101) and joint portion (102), opening (101) orientation the inside of bottom plate (1) and lateral wall (2), the external diameter of snakelike heat exchange tube (3) is greater than the width of opening (101) and be less than the internal diameter of joint portion (102).

6. The waste heat boiler returns ash to be carried and uses zip fastener machine of claim 1 characterized in that: the bottom ends of the snake-shaped heat exchange tubes (3) on the bottom plate (1) and the snake-shaped heat exchange tubes (3) on the side wall (2) are separated by a certain distance in the vertical direction.