CN219064182U

CN219064182U - Kiln tail system bypass air release structure

Info

Publication number: CN219064182U
Application number: CN202320027892.9U
Authority: CN
Inventors: 曹永德; 刘清汉
Original assignee: Zhangping Hongshi Cement Co ltd
Current assignee: Zhangping Hongshi Cement Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-23
Anticipated expiration: 2033-01-06

Abstract

The utility model relates to the technical field of cement processing, in particular to a kiln tail system bypass air discharging structure. Its technical scheme includes combustion-supporting pipe, water tank, cement cellar for storing things, bottom plate, combustion-supporting fan, conveyer pipe, screw thread sleeve and ash discharge pipe, cement cellar for storing things is installed in the rotation of bottom plate upper end, cement cellar for storing things one end is provided with the cellar for storing things tail, cement cellar for storing things top is provided with the water tank, the inside combustion-supporting pipe that has run through of water tank, combustion-supporting pipe one end is the closure form, the inside conveyer pipe that is provided with of water tank, conveyer pipe annular node lower extreme all is provided with the ash discharge pipe, screw thread sleeve has been cup jointed to the water tank lower extreme outer wall. According to the utility model, through the cooperation between the water tank and the conveying pipe structure, after the high-temperature waste gas heats water, heat is transferred to combustion-supporting gas in the combustion-supporting pipe, combustion of combustion-supporting gas in the cement pit is improved after the combustion-supporting gas is heated, dust in the conveying pipe is cleaned through the ash discharging pipe, and conveying of the high-temperature flue gas by the conveying pipe is ensured.

Description

Kiln tail system bypass air release structure

Technical Field

The utility model relates to the technical field of cement processing, in particular to a kiln tail system bypass air discharging structure.

Background

Cement kiln is used in cement processing, and cement kiln is used for processing and preparing cement firing links.

Part of high-temperature waste gas in a kiln tail smoke chamber of the cement kiln is pumped out by a bypass air outlet and is mixed with cold air blown in by a cooling fan through a quenching chamber, and kiln dust which is harmful components is enriched in a bag dust collection collecting kiln, so that the influence of alternative fuel treatment on a kiln system is improved.

However, in the prior art, the bypass high-temperature waste gas is directly discharged and purified, the high heat of the high-temperature waste gas cannot be recycled, and the resource waste is caused, so that a kiln tail system bypass ventilation structure is provided for solving the existing problems.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a kiln tail system bypass air discharging structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a kiln tail system bypass structure of letting out wind, includes combustion-supporting pipe, water tank, cement cellar for storing things, bottom plate, combustion-supporting fan, conveyer pipe, screw sleeve and ash discharge pipe, cement cellar for storing things is installed in the bottom plate upper end rotation, cement cellar for storing things one end is provided with the cellar for storing things tail, cement cellar for storing things top is provided with the water tank, the inside combustion-supporting pipe that has run through of water tank, combustion-supporting pipe one end is the closure form, the inside conveyer pipe that is provided with of water tank, conveyer pipe annular node lower extreme all is provided with ash discharge pipe, screw sleeve has been cup jointed to the water tank lower extreme outer wall.

When using a kiln tail system bypass structure in this scheme, carry water to the water tank inside through the water inlet, the water inlet is closed, cement kiln tail discharge high temperature waste gas is carried to the conveyer pipe through the exhaust pipe in the cement kiln firing cement process kiln tail, heat the inside water of water tank, combustion-supporting fan carries oxygen-containing gas and carries cement kiln combustion chamber through the combustion-supporting pipe, the inside combustion-supporting gas of combustion-supporting pipe heats the back to the burning that improves the combustion thing, the staff regularly twists the screw sleeve, with screw sleeve spiral out the ash pipe outer wall, the dust of the inside accumulation of conveyer pipe is through ash pipe discharge external world.

Preferably, the upper end of the pit tail is provided with an exhaust pipe, and one end of the exhaust pipe is connected with the conveying pipe. The exhaust pipe conveys high-temperature smoke generated by the combustibles, and the exhaust pipe conveys the smoke to the inside of the conveying pipe.

Preferably, a bracket is arranged at the lower end of the water tank, and the lower end of the bracket is connected with the bottom plate. The water tank is arranged above the bottom plate through the bracket, and supports the bottom of the water tank.

Preferably, one end of the combustion-supporting pipe is connected with the cement kiln. One end of the combustion-supporting pipe is communicated with the combustion chamber of the cement kiln, and oxygen-containing gas conveyed by the combustion-supporting pipe enters the combustion chamber to play a role in supporting combustion of the combustion matters.

Preferably, the conveying pipes are spirally distributed inside, and one ends of the conveying pipes penetrate through the water tank. The contact surface of the spiral distributed conveying pipe and water inside the water tank is prolonged, the heat exchange area is increased, the conveying pipe penetrates through one end of the water tank to be connected with dust removing equipment, and dust inside the cooled gas is purified.

Preferably, the lower end of the ash discharge pipe penetrates through the water tank, an anti-skid sleeve is arranged on the outer wall of the threaded sleeve, a limiting ring is sleeved on the outer wall of the upper end of the ash discharge pipe, a sealing gasket is arranged at the lower end of the limiting ring, and the threaded sleeve is in threaded connection with the ash discharge pipe. The lower end of the ash discharge pipe penetrates through the water tank, so that a worker can clean the lower end of the ash discharge pipe conveniently, meanwhile, the limiting ring limits the threaded sleeve, and when the sealing gasket is extruded, the sealing gasket fills a gap between the threaded sleeve and the limiting ring.

Preferably, the upper end of the water tank is provided with a water inlet, and one side of the upper end is provided with a pressure discharge valve. The water is conveyed to the water tank through the water inlet, the water inlet is closed through the sealing cover or the valve, and the pressure in the water tank is reduced through the pressure discharge valve.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the kiln tail smoke exhaust pipe is connected with the conveying pipe to perform heat exchange with water in the water tank, meanwhile, the conveying pipe is spirally distributed in the water tank to increase the contact surface with the water in the water tank, the heated water heats oxygen-containing air conveyed by the combustion-supporting fan, the heated combustion-supporting gas is helpful for promoting the combustion of the cement kiln combustion objects, and the heat in the harmful gas exhausted from the kiln tail is recycled;

2. the ash discharging pipe connected with the lower end of the annular node at the bottom of the conveying pipe is used for discharging ash inside the conveying pipe by screwing out the threaded sleeve, so that the long-time use of the conveying pipe is avoided, and the effective conveying of high-temperature waste gas discharged from the pit tail is ensured.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

fig. 3 is a schematic view of a main view of the threaded pipe of fig. 1 according to the present utility model.

Reference numerals: 1. a combustion-supporting tube; 2. a water tank; 3. a cement pit; 4. a bottom plate; 5. pit tail; 6. an exhaust pipe; 7. a combustion fan; 8. a water inlet; 9. a delivery tube; 10. a bracket; 11. a limiting ring; 12. an anti-skid sleeve; 13. a threaded sleeve; 14. a sealing gasket; 15. an ash discharge pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-3, the bypass ventilation structure of the kiln tail system provided by the utility model comprises a combustion-supporting pipe 1, a water tank 2, a cement kiln 3, a bottom plate 4, a combustion-supporting fan 7, a conveying pipe 9, a threaded sleeve 13 and an ash discharge pipe 15, wherein the cement kiln 3 is rotatably arranged at the upper end of the bottom plate 4, the kiln tail 5 is arranged at one end of the cement kiln 3, an exhaust pipe 6 is arranged at the upper end of the kiln tail 5, the water tank 2 is arranged above the cement kiln 3, a support 10 is arranged at the lower end of the water tank 2, the lower end of the support 10 is connected with the bottom plate 4, the combustion-supporting pipe 1 penetrates through the water tank 2, one end of the combustion-supporting pipe 1 is connected with the cement kiln 3, one end of the combustion-supporting pipe 1 is closed, the conveying pipe is arranged in the water tank 2, one end of the exhaust pipe 6 is connected with the conveying pipe 9, the conveying pipe 9 is spirally distributed in the interior, and one end of the conveying pipe 9 penetrates the water tank 2.

The procedure is based on example 1: the cement kiln 3 burns cement process kiln tail 5 discharge high temperature waste gas, high temperature waste gas is carried to conveyer pipe 9 inside through exhaust pipe 6, heat with water tank 2 inside, combustion-supporting fan 7 carries oxygen-containing gas and carries to cement kiln 3 combustion chamber through combustion-supporting pipe 1, combustion-supporting to the combustion-supporting thing, after carrying 9 through high temperature waste gas heating, conveyer pipe 9 carries out heat exchange with water, water tank 2 inside water is heated the back, heat with combustion-supporting pipe 1, combustion-supporting pipe 1 inside combustion-supporting gas heats the back to the burning that improves the combustion thing, realize the heat recovery to high temperature waste gas and utilize.

Example two

As shown in fig. 1-3, the bypass ventilation structure of the kiln tail system according to the present utility model further includes: the conveyer pipe 9 annular node lower extreme all is provided with ash discharge pipe 15, and ash discharge pipe 15 lower extreme runs through water tank 2, and water tank 2 lower extreme outer wall has cup jointed screw sleeve 13, and screw sleeve 13 outer wall is provided with antiskid cover 12, and ash discharge pipe 15 upper end outer wall has cup jointed spacing ring 11, and spacing ring 11 lower extreme is provided with sealed pad 14, screw sleeve 13 and ash discharge pipe 15 threaded connection, and water tank 2 upper end is provided with water inlet 8, and upper end one side is provided with the relief pressure valve.

In this embodiment, the inside high temperature waste gas that carries of conveyer pipe 9, the inside part dust of high temperature waste gas can accumulate inside conveyer pipe 9, and the dust slides down, and the accumulation is inside conveyer pipe 9 lower extreme, and the staff regularly twists screw sleeve 13, rotates screw sleeve 13 out the ash discharge pipe 15 outer wall, and the inside dust of piling up of conveyer pipe 9 is discharged the external world through ash discharge pipe 15, clears up conveyer pipe 9.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a kiln tail system bypass structure of letting out air, includes combustion-supporting pipe (1), water tank (2), cement cellar for storing things (3), bottom plate (4), combustion-supporting fan (7), conveyer pipe (9), screw sleeve (13) and ash discharge pipe (15), its characterized in that: cement cellar (3) are installed in rotation of bottom plate (4) upper end, cement cellar (3) one end is provided with jiao tail (5), cement cellar (3) top is provided with water tank (2), the inside combustion-supporting pipe (1) that has run through of water tank (2), combustion-supporting pipe (1) one end is the closure form, water tank (2) inside is provided with the conveyer pipe, conveyer pipe (9) annular node lower extreme all is provided with ash discharge pipe (15), threaded sleeve (13) have been cup jointed to water tank (2) lower extreme outer wall.

2. A kiln tail system bypass vent structure as in claim 1, wherein: the upper end of the pit tail (5) is provided with an exhaust pipe (6), and one end of the exhaust pipe (6) is connected with a conveying pipe (9).

3. A kiln tail system bypass vent structure as in claim 1, wherein: the lower end of the water tank (2) is provided with a bracket (10), and the lower end of the bracket (10) is connected with the bottom plate (4).

4. A kiln tail system bypass vent structure as in claim 1, wherein: one end of the combustion-supporting pipe (1) is connected with the cement kiln (3).

5. A kiln tail system bypass vent structure as in claim 1, wherein: the inside of the conveying pipe (9) is spirally distributed, and one end of the conveying pipe (9) penetrates through the water tank (2).

6. A kiln tail system bypass vent structure as in claim 1, wherein: the lower extreme of ash discharge pipe (15) runs through water tank (2), threaded sleeve (13) outer wall is provided with antiskid cover (12), limit ring (11) have been cup jointed to ash discharge pipe (15) upper end outer wall, limit ring (11) lower extreme is provided with sealed pad (14), threaded sleeve (13) and ash discharge pipe (15) threaded connection.

7. A kiln tail system bypass vent structure as in claim 1, wherein: the upper end of the water tank (2) is provided with a water inlet (8), and one side of the upper end is provided with a pressure discharge valve.