CN214620678U

CN214620678U - Cement kiln hood waste heat recovery boiler

Info

Publication number: CN214620678U
Application number: CN202120280933.6U
Authority: CN
Inventors: 白会强; 黄义炎; 李家宏
Original assignee: Yunnan Pu'er Tianheng Cement Co ltd
Current assignee: Yunnan Pu'er Tianheng Cement Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-05
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a waste heat recovery boiler at the kiln head of a cement kiln, in particular to the field of waste heat recovery of the cement kiln, which comprises a shell, the shell is internally provided with a first cavity and a second cavity, the shell is internally and fixedly provided with a first motor, the output end of the first motor is connected with a filter screen which is arranged in the first cavity, the upper end of the gas transmission pipe is connected with the second cavity, a clip-shaped water pipe is fixedly arranged in the second cavity, a heating pipe is arranged on one side wall of the shell, when the utility model is in operation, hot gas enters the second cavity after entering the first cavity, so that the hot gas can be recycled for the second time, install first motor at the top of first cavity, the output of first motor drives the filter screen, and at first cavity internal rotation, the cleaning brush is installed to the lateral wall of filter screen, accomplishes the effect of clean inner wall.

Description

Cement kiln hood waste heat recovery boiler

Technical Field

The utility model relates to a cement kiln waste heat recovery technical field, more specifically say, the utility model relates to a cement kiln hood waste heat recovery boiler.

Background

At present, kiln head boilers of cement kiln waste heat power generation projects in the market basically adopt an upper air inlet type, and most of the kiln head boilers are external settling chambers. The feedback is carried out in long-time work, the upper air inlet type boiler system has the defects of heat dissipation loss, overlarge resistance, serious damage and dust deposition on a heating surface and the like, the economy and the safety of waste heat recovery are influenced, and the recovery efficiency in actual operation is very low.

The lower air inlet type kiln head boiler cancels an external settling chamber, the settling chamber and the boiler are integrally designed, and the lower air inlet type kiln head boiler has the outstanding advantages of small system heat dissipation loss and resistance, difficult abrasion of a heating surface and the like, and is verified through a plurality of projects. However, how to apply the kiln head of the cement kiln to the existing project of waste heat recovery also has many problems which need to be reformed and solved, and the operation is troublesome, so that the maintenance, the checking and the cleaning of the waste heat recovery boiler at the kiln head of the cement kiln are very inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a cement kiln hood waste heat recovery boiler, the utility model aims to solve the technical problem that: how to recycle the waste heat of the kiln head of the cement kiln and the actual effect of the waste heat recycle of the kiln head of the cement kiln on heating the water in the water return pipe.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cement kiln hood waste heat recovery boiler, includes the casing, inside first cavity and the second cavity of being provided with of casing, the inside fixed mounting of casing has first motor, the output of first motor is connected with the filter screen, the filter screen sets up the inside at first cavity, the gas-supply pipe of first cavity sets up in one side of first cavity, the three filter screen of inside fixed mounting of gas-supply pipe, on the second cavity is connected to the upper end of gas-supply pipe, inside fixed mounting of second cavity has the time shape water pipe, a lateral wall of casing is provided with the heating pipe, the second cavity communicates with the one end of heating pipe, the lateral wall of casing is provided with the inlet tube, the one end of inlet tube is connected with the time shape water pipe, the one end that the inlet tube was kept away from to the time shape water pipe is provided with first outlet pipe.

In a preferred embodiment, a waste heat recovery tube is fixedly installed on one side wall of the shell, a cleaning filter screen is movably installed in the waste heat recovery tube, and one end of the waste heat recovery tube is communicated with the first cavity.

In a preferred embodiment, the connection end of the filter screen and the first motor is vertically distributed with the first cavity, the filter screen is arranged in the middle of the first cavity, the outer wall of the filter screen is fixedly provided with the cleaning brush, and the outer side wall of the cleaning brush is in contact with the inner wall of the first cavity.

In a preferred embodiment, the first water outlet pipe is arranged at the top of the water storage tank, and a second water outlet pipe is arranged on one side of the water storage tank and fixedly connected with the water valve.

In a preferred embodiment, the bottom of the filter screen is provided with an ash storage vehicle, the bottom of the ash storage vehicle is provided with four groups of movable pulleys, and two groups of slide rail grooves are fixedly arranged below the four groups of movable pulleys.

In a preferred embodiment, a heat dissipation window is arranged at the top end of the shell, and a shell cover is fixedly arranged on one side of the upper end of the shell.

Compared with the prior art, the utility model discloses a technological effect and advantage:

1. the utility model discloses utilize the casing the inside to be provided with first cavity and second cavity, get into the second cavity after steam gets into first cavity for steam can secondary cyclic utilization, install first motor at the top of first cavity, the output of first motor drives the filter screen, at the internal rotation of first cavity, the lateral wall of filter screen is installed and is cleaned the brush, clean the inner wall in first cavity, the foreign matter in the inner wall will drop in the ash storage car, take out through two sets of slide rail grooves below the ash storage car, reach clear effect;

2. the utility model discloses an in cold water is inputed back shape water pipe through the inlet tube, carry out the heating for the first time when first cavity, it establishes in the second cavity equally to return the shape water pipe, carry out the second time heating in the second cavity, return the first inlet tube of shape water pipe intercommunication, the aqua storage tank is discharged through first inlet tube to water after the heating, open the water valve and use the hot water suction of aqua storage tank through the second outlet pipe during the use, the top of casing is equipped with the heat dissipation window, the heat dissipation window is favorable to the inside heat dissipation of casing, the convenient dust of clearing up the casing the inside with the dismantlement of casing lid.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is an enlarged schematic view of a structure shown in fig. 2 according to the present invention.

The reference signs are: the device comprises a shell 1, a first motor 2, a first cavity 3, a filter screen 4, a gas delivery pipe 5, three filter screens 6, a second cavity 7, a water pipe 8 in a shape of a circle, a heating pipe 9, a water inlet pipe 10, a first water outlet pipe 11, a water storage tank 12, a waste heat recovery pipe 13, a cleaning filter screen 14, a cleaning brush 15, a second water outlet pipe 16, a water valve 17, an ash storage vehicle 18, two sets of slide rail grooves 19, a heat dissipation window 20 and a shell cover 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The cement kiln head waste heat recovery boiler comprises a shell 1, wherein a first cavity 3 and a second cavity 7 are arranged inside the shell 1, a first motor 2 is fixedly arranged inside the shell 1, the output end of the first motor 2 is connected with a filter screen 4, the filter screen 4 is arranged inside the first cavity 3, a gas pipe 5 of the first cavity 3 is arranged on one side of the first cavity 3, three filter screens 6 are fixedly arranged inside the gas pipe 5, the upper end of the gas pipe 5 is connected with the second cavity 7, a clip-shaped water pipe 8 is fixedly arranged inside the second cavity 7, a heating pipe 9 is arranged on one side wall of the shell 1, the second cavity 7 is communicated with one end of the heating pipe 9, a water inlet pipe 10 is arranged on the side wall of the shell 1, one end of the water inlet pipe 10 is connected with the clip-shaped water pipe 8, and a first water outlet pipe 11 is arranged at one end of the square-shaped water pipe 8 far away from the water inlet pipe 10.

In a preferred embodiment, a waste heat recovery tube 13 is fixedly installed on one side wall of the housing 1, a cleaning filter screen 14 is movably installed inside the waste heat recovery tube 13, one end of the waste heat recovery tube 13 is communicated with the first cavity 3, and the movably installed cleaning filter screen 14 can be detached from the waste heat recovery tube 13 for cleaning.

In a preferred embodiment, the connection ends of the filter screen 4 and the first motor 2 are vertically distributed with the first cavity 3, the filter screen 4 is arranged in the middle of the first cavity 3, the cleaning brush 15 is fixedly mounted on the outer wall of the filter screen 4, the outer side wall of the cleaning brush 15 is in contact with the inner wall of the first cavity 3, and the filter screen 4 is arranged in the first cavity 3, so that the cleaning brush 15 rotates to clean the first cavity 3.

In a preferred embodiment, the first water outlet pipe 11 is disposed at the top of the water storage tank 12, a second water outlet pipe 16 is disposed at one side of the water storage tank 12, the second water outlet pipe 16 is fixedly connected with the water valve 17, the heated water is transported to the water storage tank 12 through the first water outlet pipe 11, and then the heated water is transported out through the second water outlet pipe 16 connected with the water valve 17.

In a preferred embodiment, the dust storage cart 18 is arranged at the bottom of the filter screen 4, four sets of movable pulleys are arranged at the bottom of the dust storage cart 18, two sets of slide rail grooves 19 are fixedly arranged below the four sets of movable pulleys, the dust storage cart 18 receives foreign matters filtered by the filter screen 4, and then the dust storage cart 18 is drawn out to achieve a cleaning effect.

In a preferred embodiment, a heat dissipation window 20 is disposed at the top end of the housing 1, a housing cover 21 is fixedly disposed at one side of the upper end of the housing 1, the housing cover 21 is convenient to detach from the housing 1 to clean dust inside the housing 1, and the heat dissipation window 20 facilitates heat dissipation inside the housing 1.

The utility model discloses a theory of operation: in normal work, a detachable cleaning filter screen 14 is arranged inside a waste heat recovery pipe 13, a first cavity 3 and a second cavity 7 are arranged inside a shell 1, the waste heat recovery pipe 13 is conveyed to the first cavity 3 by collecting waste heat of a kiln head of a cement kiln, a first motor 2 is arranged at the top of the first cavity 3, the output end of the first motor 2 drives the filter screen 4 to rotate in the first cavity 3, a cleaning brush 15 is arranged on the outer side wall of the filter screen 4 to clean the inner wall in the first cavity 3, so that foreign matters in the inner wall can fall into an ash storage vehicle 18, the foreign matters are drawn out through two groups of slide rail grooves 19 below the ash storage vehicle 18 to achieve the cleaning effect, hot air of the first cavity 3 enters a gas conveying pipe 5 and enters the second cavity 7 through the gas conveying pipe 5, three gas filter screens 6 are arranged when the hot air passes through the gas conveying pipe 5 to filter and purify the air, and the air is discharged into the second cavity 7 after no peculiar smell exists, heating the water in the square-shaped water pipe 8 for the second time, and heating the room through the heating pipe 9 after heating;

cold water is input into the water pipe 8 through the water inlet pipe 10, the water pipe is heated for the first time when passing through the first cavity 3, the water pipe 8 is also arranged in the second cavity 7, the water pipe 7 is heated for the second time, the water pipe 8 is communicated with the first water inlet pipe 11, the heated water is discharged into the water storage tank 12 through the first water inlet pipe 11, the water valve 17 is opened during the use to suck the hot water out of the water storage tank 12 through the second water outlet pipe 16, the top end of the shell 1 is provided with the heat dissipation window 20, the shell cover 21 is fixedly arranged on one side of the upper end of the shell 1, the heat dissipation window 20 is favorable for the internal heat dissipation of the shell 1, and the shell cover 21 is convenient to disassemble from the shell 1 to clean the dust in the shell 1.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cement kiln hood waste heat recovery boiler, includes casing (1), its characterized in that: the heating device is characterized in that a first cavity (3) and a second cavity (7) are arranged inside the shell (1), a first motor (2) is fixedly arranged inside the shell (1), the output end of the first motor (2) is connected with a filter screen (4), the filter screen (4) is arranged inside the first cavity (3), a gas pipe (5) of the first cavity (3) is arranged on one side of the first cavity (3), three gas filter nets (6) are fixedly arranged inside the gas pipe (5), the upper end of the gas pipe (5) is connected onto the second cavity (7), a clip-shaped water pipe (8) is fixedly arranged inside the second cavity (7), a heating pipe (9) is arranged on one side wall of the shell (1), the second cavity (7) is communicated with one end of the heating pipe (9), and a water inlet pipe (10) is arranged on the side wall of the shell (1), one end of the water inlet pipe (10) is connected with a clip-shaped water pipe (8), and one end, far away from the water inlet pipe (10), of the clip-shaped water pipe (8) is provided with a first water outlet pipe (11).

2. The waste heat recovery boiler for the kiln head of the cement kiln as recited in claim 1, wherein: casing (1) a lateral wall fixed mounting waste heat recovery pipe (13), the inside movable mounting of waste heat recovery pipe (13) cleans filter screen (14), the one end of waste heat recovery pipe (13) with connect first cavity (3) intercommunication.

3. The waste heat recovery boiler for the kiln head of the cement kiln as recited in claim 1, wherein: the utility model discloses a cleaning brush, including filter screen (4), first motor (2) link, filter screen (4) and first motor (2) link all with first cavity (3) vertical distribution, filter screen (4) set up in first cavity (3) intermediate position, the outer wall fixed mounting cleaning brush (15) of filter screen (4), the lateral wall and the first cavity (3) inner wall of cleaning brush (15) contact.

4. The waste heat recovery boiler for the kiln head of the cement kiln as recited in claim 1, wherein: the first water outlet pipe (11) is arranged at the top of the water storage tank (12), a second water outlet pipe (16) is arranged on one side of the water storage tank (12), and the second water outlet pipe (16) is fixedly connected with a water valve (17).

5. The waste heat recovery boiler for the kiln head of the cement kiln as recited in claim 4, wherein: the dust storage trolley is characterized in that a dust storage trolley (18) is arranged at the bottom of the filter screen (4), four groups of movable pulleys are arranged at the bottom of the dust storage trolley (18), and two groups of slide rail grooves (19) are fixedly arranged below the four groups of movable pulleys.

6. The waste heat recovery boiler for the kiln head of the cement kiln as recited in claim 1, wherein: the top end of the shell (1) is provided with a heat dissipation window (20), and one side of the upper end of the shell (1) is fixedly provided with a shell cover (21).