CN211570482U

CN211570482U - Preheater based on cement production

Info

Publication number: CN211570482U
Application number: CN201922246427.0U
Authority: CN
Inventors: 刘仕臣; 张仕丹; 黄中桂; 丁苏平
Original assignee: Guizhou Sandu Southwest Cement Co ltd
Current assignee: Guizhou Sandu Southwest Cement Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-25
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a pre-heater based on cement manufacture, including the pre-heater body, the top of pre-heater body is provided with first gas outlet and second gas outlet respectively, the first outlet duct of top fixedly connected with of first gas outlet, be provided with the windage detector on the first outlet duct, the input of windage detector extends to the inside of first outlet duct, be provided with the control valve on the second gas outlet, the utility model relates to a pre-heater technical field. This pre-heater based on cement manufacture can be controlled the traffic volume according to the demand of using, and first outlet duct wind speed when normal operating is too fast, and when the resistance was too high, detects and observes through the windage detector, and maintainer is through starting control valve to the convenience is opened the second gas outlet and is used, thereby increases the circulation space, reduces wind speed and resistance, stability and the security that improve equipment used, the life of extension equipment simultaneously.

Description

Preheater based on cement production

Technical Field

The utility model relates to a pre-heater technical field specifically is a pre-heater based on cement manufacture.

Background

In recent years, because raw materials are easy to burn and have large component fluctuation, more importantly, high-sulfur anthracite is used as fuel, and the combustion performance is poor, the problems of shrinkage of a decomposing furnace, furnace tail smoke chamber skinning and the like are caused. At present, the preheater has high resistance and low clinker yield. The high-temperature fan has high power consumption due to the high resistance of the preheater; due to the low clinker yield, the heat consumption is increased, and the unit clinker power consumption is also obviously increased.

In the prior art, when the preheaters are in working states, the diameters and the inlet areas of ascending pipelines of all stages of preheaters are small, and when the overproduction range of a system exceeds more than 10%, the wind speed is too high, and the resistance is too high

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a preheater based on cement manufacture has solved the pipeline diameter problem on the small side of single channel.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a preheater based on cement production comprises a preheater body, wherein a first air outlet and a second air outlet are respectively arranged at the top of the preheater body, a first air outlet pipe is fixedly connected to the top of the first air outlet, a wind resistance detector is arranged on the first air outlet pipe, the input end of the wind resistance detector extends into the first air outlet pipe, a control valve is arranged on the second air outlet, a first connecting flange is fixedly connected to the top of the second air outlet, positioning grooves are respectively arranged at two sides of the first connecting flange, a bottom sealing groove is arranged at the top of the first connecting flange, a second connecting flange is arranged at the top of the first connecting flange, a top sealing groove is arranged at the bottom of the second connecting flange, a limiting connecting ring is fixedly connected to the outer side of the bottom of the second connecting flange, mounting grooves are respectively arranged at two sides of the inner wall of the limiting connecting ring, the mounting groove with be provided with positioning bolt between the constant head tank, bottom seal groove with be provided with the sealing washer between the seal groove of top, second flange's top fixedly connected with second outlet duct to the solid fixed ring of inboard fixedly connected with of second flange, solid fixed ring's inboard fixedly connected with go-between, the bottom of go-between extends to first flange's inboard.

Further, the bottom sealing groove is an annular inner groove, and the size of the bottom sealing groove is the same as that of the top sealing groove.

Further, the sealing ring is of an annular structure.

Further, the surface of positioning bolt is half thread face and half cylinder type plane to cylindrical plane's size with the internal surface joint of constant head tank.

Further, the inner surface of the mounting groove is an internal thread surface, and the thread surface is in threaded connection with the inner surface of the mounting groove.

Further, the inner diameter of the second connecting flange is the same as the inner diameter of the first connecting flange, and the outer diameter of the second connecting flange is larger than the outer diameter of the first connecting flange.

Furthermore, the difference between the inner diameter of the limiting connecting ring and the inner diameter of the first connecting flange is 0.5-1 cm, and the bottom of the limiting connecting ring and the bottom of the first connecting flange are on the same horizontal plane.

Compared with the prior art, the beneficial effects of the utility model are that:

this pre-heater based on cement manufacture, replace the structure of original single channel output through being provided with binary channels's export, change original traffic volume, and can control the traffic volume according to the demand of using, first outlet duct wind speed when normal operating is too fast, when the resistance is too high, detect and observe through the windage detector, maintainer is through starting the control valve, thereby the convenience is opened and is used the second gas outlet, thereby increase the circulation space, reduce wind speed and resistance, improve the stability and the security that equipment used, the life of extension equipment simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1;

fig. 3 is a schematic structural view of the fixing ring portion shown in fig. 2.

In the figure: 1-a preheater body, 2-a first air outlet, 3-a first air outlet pipe, 4-a wind resistance detector, 5-a second air outlet, 6-a control valve, 7-a first connecting flange, 71-a positioning groove, 72-a bottom sealing groove, 8-a second connecting flange, 801-a top sealing groove, 81-a limiting connecting ring, 811-a mounting groove, 82-a positioning bolt, 9-a sealing ring, 10-a second air outlet pipe, 11-a fixing ring and 111-a connecting ring.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a preheater based on cement production comprises a preheater body 1, wherein a first air outlet 2 and a second air outlet 5 are respectively arranged at the top of the preheater body 1, a first air outlet pipe 3 is fixedly connected to the top of the first air outlet 2, a wind resistance detector 4 is arranged on the first air outlet pipe 3, the input end of the wind resistance detector 4 extends into the first air outlet pipe 3, a control valve 6 is arranged on the second air outlet 5, a first connecting flange 7 is fixedly connected to the top of the second air outlet 5, positioning grooves 71 are respectively arranged on two sides of the first connecting flange 7, a bottom sealing groove 72 is arranged at the top of the first connecting flange 7, a second connecting flange 8 is arranged at the top of the first connecting flange 7, a top sealing groove 801 is arranged at the bottom of the second connecting flange 8, a limiting connecting ring 81 is fixedly connected to the outer side of the bottom of the second connecting flange 8, mounting groove 811 has all been seted up to the both sides of spacing go-between 81 inner walls, mounting groove 811 with be provided with positioning bolt 82 between the constant head tank 71, bottom seal groove 72 with be provided with sealing washer 9 between the top seal groove 801, the top fixedly connected with second outlet duct 10 of second flange 8 to the solid fixed ring 11 of the inboard fixedly connected with of second flange 8, gu the inboard fixedly connected with go-between 111 of fixed ring 11, the bottom of go-between 111 extends to the inboard of first flange 7.

Replace the structure of original single channel output through being provided with binary channels's export, change original traffic volume, and can control the traffic volume according to the demand of using, 3 wind speeds of first outlet duct when normal operating are too fast, when the resistance is too high, detect and observe through windage detector 4, maintainer is through starting control valve 6, thereby the convenience is opened and is used second gas outlet 5, thereby increase the circulation space, reduce wind speed and resistance, improve the stability and the security that equipment used, the life of extension equipment simultaneously.

The bottom seal groove 72 is an annular inner groove, and the size of the bottom seal groove 72 is the same as that of the top seal groove 801.

The sealing performance of the connection between the first connecting flange 7 and the second connecting flange 8 is increased between the bottom sealing groove 72 and the top sealing groove 801 by the sealing ring 9.

The sealing ring 9 is of an annular structure, and the sealing ring 9 is installed between the bottom sealing groove 72 and the top sealing groove 801, so that the sealing effect of connection is improved.

The surface of the positioning bolt 82 is a half thread surface and a half cylindrical plane, and the size of the cylindrical plane is clamped with the inner surface of the positioning groove 71.

Positioning bolt 82 passes through the threaded structural mounting on spacing go-between 81, positioning bolt 82 passes through the joint between cylindrical planar structure and the constant head tank 71, thereby reach spacing to first connecting flange 7, carry out bolted connection and fix through the flange hole between first connecting flange 7 and the second connecting flange 8, convenient dismantlement and the change to second outlet duct 10 of structure through flange connection, when need not use second outlet duct 10, can select not to install the structure of second connecting flange 8 and second outlet duct 10, the cost is saved, pre-heater body 1 reserves first connecting flange 7 with reserve, need use binary channels structure when avoiding adding man-hour wind speed excessively fast, provide different user demands for the user.

The inner surface of the mounting groove 811 is an inner threaded surface, and the threaded surface is in threaded connection with the inner surface of the mounting groove 811.

The inner diameter of the second connecting flange 8 is the same as the inner diameter of the first connecting flange 7, and the outer diameter of the second connecting flange 8 is larger than the outer diameter of the first connecting flange 7.

The difference between the inner diameter of the limiting connection ring 81 and the inner diameter of the first connection flange 7 is 0.5-1 cm, and the bottom of the limiting connection ring 81 and the bottom of the first connection flange 7 are on the same horizontal plane.

When the preheater works, the positioning bolt 82 is clamped with the positioning groove 71 through the cylindrical plane structure, so that the first connecting flange 7 is limited, the first connecting flange 7 and the second connecting flange 8 are in bolted connection and fixed through the flange holes, the second outlet pipe 10 is convenient to detach and replace through the flange connection structure, when the second outlet pipe 10 is not needed, the structure without the second connecting flange 8 and the second outlet pipe 10 can be selected, the cost is saved, the first connecting flange 7 is reserved on the preheater body 1 for standby, the double-channel structure is avoided being used when the air speed is too high in the process, and different use requirements are provided for a user;

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a 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. A preheater based on cement production, includes preheater body (1), its characterized in that: the preheater comprises a preheater body (1), and is characterized in that a first gas outlet (2) and a second gas outlet (5) are respectively arranged at the top of the preheater body (1), a first gas outlet pipe (3) is fixedly connected to the top of the first gas outlet (2), a wind resistance detector (4) is arranged on the first gas outlet pipe (3), the input end of the wind resistance detector (4) extends into the first gas outlet pipe (3), a control valve (6) is arranged on the second gas outlet (5), a first connecting flange (7) is fixedly connected to the top of the second gas outlet (5), positioning grooves (71) are respectively arranged on two sides of the first connecting flange (7), a bottom sealing groove (72) is arranged at the top of the first connecting flange (7), a second connecting flange (8) is arranged at the top of the first connecting flange (7), a top sealing groove (801) is arranged at the bottom of the second connecting flange (8), the utility model discloses a fixing ring for connecting the automobile seat, including first flange (8), the outside fixedly connected with of second flange (8) bottom is spacing go-between (81), mounting groove (811) have all been seted up to the both sides of spacing go-between (81) inner wall, mounting groove (811) with be provided with positioning bolt (82) between constant head tank (71), bottom seal groove (72) with be provided with between top seal groove (801) sealing washer (9), the top fixedly connected with second outlet duct (10) of second flange (8) to the solid fixed ring (11) of inboard fixedly connected with of second flange (8), the inboard fixedly connected with go-between (111) of solid fixed ring (11), the bottom of go-between (111) extends to the inboard of first flange (7).

2. A cement production based preheater as claimed in claim 1, wherein: the bottom sealing groove (72) is an annular inner groove, and the size of the bottom sealing groove (72) is the same as that of the top sealing groove (801).

3. A cement production based preheater as claimed in claim 1, wherein: the sealing ring (9) is of an annular structure.

4. A cement production based preheater as claimed in claim 1, wherein: the surface of the positioning bolt (82) is a half thread surface and a half cylindrical plane, and the size of the cylindrical plane is connected with the inner surface of the positioning groove (71) in a clamping mode.

5. A cement production based preheater as claimed in claim 1, wherein: the inner surface of the mounting groove (811) is an internal thread surface, and the thread surface is in threaded connection with the inner surface of the mounting groove (811).

6. A cement production based preheater as claimed in claim 1, wherein: the inner diameter of the second connecting flange (8) is the same as the inner diameter of the first connecting flange (7), and the outer diameter of the second connecting flange (8) is larger than the outer diameter of the first connecting flange (7).

7. A cement production based preheater as claimed in claim 1, wherein: the difference between the inner diameter of the limiting connecting ring (81) and the inner diameter of the first connecting flange (7) is 0.5-1 cm, and the bottom of the limiting connecting ring (81) and the bottom of the first connecting flange (7) are on the same horizontal plane.