CN220843846U

CN220843846U - Cement raw meal homogenizing warehouse

Info

Publication number: CN220843846U
Application number: CN202321027902.5U
Authority: CN
Inventors: 郭顺东; 黄大回
Original assignee: Yongan Jinniu Cement Co ltd
Current assignee: Yongan Jinniu Cement Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2024-04-26
Anticipated expiration: 2033-05-04

Abstract

The application relates to the technical field of cement raw material homogenizing devices, and provides a cement raw material homogenizing warehouse, which comprises a warehouse body, a decompression cone, air boxes, a guide cone and a material circulating homogenizing device, wherein the top of the warehouse body is provided with a feed inlet, the bottom of the warehouse body is provided with a discharge opening, the decompression cone is supported at the top of the discharge opening by a supporting rod, the air boxes are arranged in a plurality of annular shapes and distributed at the bottom of the warehouse body, each air box is positioned between the discharge opening and the side wall of the warehouse body and communicated with an air source arranged outside the warehouse body through an air inlet pipeline, the guide cone is of a conical plate structure, the guide cone is arranged above the decompression cone in the warehouse body, a plurality of material distributing openings are arranged on the plate of the guide cone in a penetrating manner, and the material circulating homogenizing device comprises an air chute, a bucket elevator, a conveying pipe, an ash returning pipe and a premixing mechanism. According to the application, the materials in the warehouse body are conveyed to the bucket elevator through the air chute, and are mixed with the materials in the ash return pipe through the conveying pipe and then enter the premixing mechanism for homogenization treatment, so that the materials are fully stirred and uniformly mixed.

Description

Cement raw meal homogenizing warehouse

Technical Field

The application relates to the technical field of cement raw material homogenizing devices, in particular to a cement raw material homogenizing warehouse.

Background

The cement raw material is a material which is ground to a certain fineness by proportionally matching a calcareous raw material, a clay raw material and a small amount of correction raw material (mineralizing agent, seed crystal and the like are also added in some cases, coal is also added in the production of a vertical kiln), and the homogenizing warehouse is a large bulk material storage warehouse which can effectively store granular bulk materials, clinker and crushed limestone and can also effectively store powdery bulk materials, and is widely applied in the cement industry.

After the raw material mill is stopped, kiln ash returning can continuously enter a raw material warehouse, and because of the difference of grindability of materials in raw material ingredients, the grading of various materials in raw material powder grading is also greatly different, and the materials with good grindability after the raw material mill is stopped have finer granularity, are easy to escape and are taken away by system air, and finally are collected by a dust collecting system to be mixed with normal raw materials in the warehouse and enter the kiln.

The clay in the cement raw material is better in grindability than other materials, the particles are finer, so that clay particles in the recycled ash are the most after grinding is stopped, the content of silicon dioxide and aluminum oxide in the clay is higher, the content of calcium oxide is lower, the recycled ash can be continuously put in storage after grinding is stopped, the dilution of fresh raw materials is avoided, the influence of the high silicon dioxide, the high aluminum oxide and the low calcium oxide on the recycled ash is more obvious, the hardness of the recycled raw materials is lower and lower, the sintering quality of cement clinker is influenced, the prior art CN211005148U discloses a cement raw material homogenizing warehouse which can homogenize the fresh raw materials in use, but does not have the homogenizing function between the recycled ash and the materials in the warehouse, and therefore, the cement raw material homogenizing warehouse is provided for solving the technical problems.

Disclosure of Invention

The embodiment of the application aims to provide a cement raw material homogenizing warehouse, which can homogenize kiln ash returning materials and materials in the homogenizing warehouse, so that the homogenization degree of the materials in the homogenizing warehouse is improved, and the firing quality of cement clinker is improved.

The embodiment of the application provides a cement raw meal homogenizing warehouse, which adopts the following technical scheme:

the utility model provides a cement raw meal homogenization storehouse, includes the storehouse body, decompression awl, charging box and guide cone, storehouse body top is provided with the feed inlet, storehouse body bottom is provided with the discharge opening, decompression awl is steel cone structure, decompression awl by a plurality of bracing pieces support in the discharge opening top, the charging box sets up a plurality of, a plurality of charging box annular distribute in storehouse body bottom, the charging box is located the discharge opening with between the storehouse body lateral wall, and every the charging box all through the admission line with the air supply intercommunication that the outside of storehouse set up, the guide cone is the conical plate body structure, the guide cone is located in the storehouse body, the guide cone is located decompression cone top, run through on the plate body of guide cone and be provided with a plurality of feed inlets, its characterized in that: still include material circulation homogenization device, material circulation homogenization device includes air chute, bucket elevator, conveyer pipe, ash return pipe and pre-mixing mechanism, air chute's pan feeding end with the discharge opening links to each other, air chute's discharge end with bucket elevator links to each other, conveyer pipe one end with bucket elevator's discharge end links to each other, the conveyer pipe other end with pre-mixing mechanism's pan feeding end is connected, ash return pipe is located pre-mixing mechanism's pan feeding end, pre-mixing mechanism locates on the storehouse body, pre-mixing mechanism is used for coming from conveyer pipe ash return pipe's mixed material carries out pre-homogenization treatment, and will mix the material after the feed inlet is passed through the storehouse is internal.

The cement raw material homogenizing warehouse comprises a mixing box, a driving piece, a rotating rod and a scattering component, wherein the mixing box is arranged on the warehouse body, the feeding end of the mixing box is connected with the conveying pipe and the ash returning pipe, the discharging end of the mixing box is communicated with the feeding hole, the driving piece is arranged on the outer wall of the mixing box, the driving piece is positioned on one side of the mixing box, which is close to the conveying pipe, one end of the rotating rod is connected with the output end of the driving piece, the other end of the rotating rod extends into the mixing box, and the scattering component is arranged on the rotating rod.

According to the cement raw material homogenizing warehouse disclosed by the application, the scattering assembly comprises a plurality of spiral blades and a plurality of stirring blades, wherein the spiral blades are positioned at one end close to the conveying pipe, and the stirring blades are positioned at one end close to the discharge opening.

According to the cement raw material homogenizing warehouse, the driving piece is a servo motor.

According to the cement raw material homogenizing warehouse, the control valve is arranged on the ash return pipe.

According to the cement raw material homogenizing warehouse, a punching flowmeter is arranged between the discharge opening and the air chute.

According to the cement raw material homogenizing warehouse, the observation window is arranged on the outer side wall of the warehouse body.

The application has the beneficial effects that:

Compared with the prior art, the application adds the material circulation homogenizing device, when the raw materials are stopped, the materials in the warehouse enter the air chute through the discharge opening, are conveyed to the bucket elevator through the air chute, are conveyed to the conveying pipe through the bucket elevator and enter the premixing mechanism through the conveying pipe, are fully mixed with the ash returning from the ash returning pipe in the premixing mechanism, the preliminary homogenization is completed, the mixed materials enter the warehouse through the feed opening, when the materials fall on the section of the material guiding cone, the uniform material distributing openings are distributed on the material guiding cone, before entering the fluidization homogenizing area, the materials are mixed at the material distributing openings due to the gravity effect in the material downward moving process, thereby completing the secondary homogenization, the materials entering the fluidization homogenizing area through the material distributing openings are stirred by the airflow of the charging box, have better fluidity, the cement raw materials are homogenized for three times, the materials after the three times are discharged through the discharge opening at the bottom of the ash bin, the decompression cone at the center of the lower part of the material discharging area of the warehouse can be uniformly discharged downwards, and the materials between the ash returning and the raw materials in the warehouse are improved through the operations, so that the sintering quality of the cement in the warehouse is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of some embodiments of the utility model;

Fig. 2 is an enlarged view of the structure at a in fig. 1.

The reference numerals are respectively:

1. A library; 2. a pressure reducing cone; 3. an air charging box; 4. a guide cone; 5. a feed inlet; 6. a discharge port; 7. a support rod; 8. a material distributing port; 9. a material circulation homogenizing device; 10. an air chute; 11. bucket elevator; 12. a delivery tube; 13. an ash return pipe; 14. a premixing mechanism; 15. a mixing box; 16. a driving member; 17. a rotating rod; 18. a break-up assembly; 19. a helical blade; 20. stirring blades; 21. a control valve; 22. a punch plate flowmeter; 23. an observation window; 24. and a material conveyor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the cement raw material homogenizing warehouse in the embodiment of the application comprises a warehouse body 1, a decompression cone 2, air boxes 3, a material guiding cone 4 and a material circulating homogenizing device 9, wherein a feed inlet 5 is arranged at the top of the warehouse body 1, a discharge opening 6 is arranged at the bottom of the warehouse body 1, the decompression cone 2 is of a steel cone structure, the decompression cone 2 is supported at the top of the discharge opening 6 by a plurality of support rods 7, in order to facilitate the disassembly and assembly of the decompression cone 2, the support rods 7 are H-shaped steel, the bottom of each support rod 7 is welded with a fixed steel plate, the warehouse bottom of the warehouse body 1 opposite to the fixed steel plate is provided with an embedded bolt, the fixed steel plate is fixedly connected with the embedded bolt, the decompression cone 2 is surrounded by conical steel plates, the whole steel structure ensures that the parts are connected simply and stressed stably, the air boxes 3 are more firmly arranged when bearing the upper powder pressure, the air boxes 3 are annularly distributed at the bottom of the warehouse body 1, the air charging boxes 3 are positioned between the discharging openings 6 and the side walls of the warehouse body 1, each air charging box 3 is communicated with an air source arranged outside the warehouse body 1 through an air inlet pipeline, the air source is a Roots blower (not shown in the figure) arranged outside the warehouse body 1, a main air charging pipe of the Roots blower is communicated with the air charging boxes 3 through air charging pipes at a plurality of ends and is used for charging air into the air charging boxes 3, the material guiding cone 4 is of a conical plate structure, the material guiding cone 4 is arranged in the warehouse body 1, the material guiding cone 4 is positioned above the decompression cone 2, a plurality of distributing openings 8 are arranged on the plate body of the material guiding cone 4 in a penetrating way, the decompression cone 2 is arranged right above the discharging openings 6, the cone apex angle of the cone part is 60 degrees, the discharging openings 6 are matched with the air charging system in the warehouse body 1 for use, so that the homogenization warehouse is smooth in discharging, the material flow is stable, and unsmooth discharging and uneven discharging is avoided, even under the conditions of arching, blocking and the like, the guide cone 4 is surrounded by an arc-shaped steel plate, the edge of the cone plate of the guide cone 4 is fixedly connected with the side wall of the warehouse body 1 through a pre-buried bolt, the guide cone 4 is coaxial with the decompression cone 2 and the discharge opening 6, the material circulation homogenizing device 9 comprises an air chute 10, a bucket elevator 11, a conveying pipe 12, a ash return pipe 13 and a premixing mechanism 14, the feeding end of the air chute 10 is connected with the discharge opening 6, the bottom of the warehouse body 1 is also provided with another air chute 10 for conveying raw materials in the warehouse body 1 into a cement kiln for calcination, the discharge opening 6 is provided with a switchable valve body, so that the raw materials from the warehouse body 1 can be circularly conveyed or conveyed into the kiln for calcination, the discharging end of the air chute 10 is connected with the bucket elevator 11, one end of a conveying pipe 12 is connected with the discharge end of a bucket elevator 11, the other end of the conveying pipe 12 is connected with the feed end of a premixing mechanism 14, an ash returning pipe 13 is arranged at the feed end of the premixing mechanism 14, the premixing mechanism 14 is arranged on a warehouse body 1, the premixing mechanism 14 is used for carrying out pre-homogenization treatment on mixed materials from the conveying pipe 12 and the ash returning pipe 13, the mixed materials are conveyed into the warehouse body 1 through a feed inlet 5, the bucket elevator 11 is also connected with a material conveyor 24, when the materials are fed through the material conveyor 24, the bucket elevator 11 continuously conveys cement raw materials inside the warehouse body 1, when the materials are fed through an air chute 10, the bucket elevator 11 is used for circularly conveying the materials in the warehouse body 1, and full mixing of the raw materials of the warehouse body 1 and the ash returning pipe 13 is realized in the material circulation process.

When the raw materials are stopped, the materials in the warehouse body 1 enter the air chute 10 through the discharge opening 6, are conveyed into the bucket elevator 11 through the air chute 10, are conveyed into the conveying pipe 12 through the bucket elevator 11 and enter the premixing mechanism 14 through the conveying pipe 12, are fully mixed with the ash returned from the ash returning pipe 13 in the premixing mechanism 14 to finish primary homogenization, the mixed materials enter the warehouse body 1 through the feed opening 5, when the warehouse-in materials fall on the section of the guide cone 4, the uniform material distributing openings 8 are distributed on the guide cone 4, before entering the flow state homogenization area, the materials are mixed at the material distributing openings 8 due to the gravity effect in the downward movement process of the materials, so that the materials entering the flow state homogenization area through the material distributing openings 8 are stirred by the airflow of the air charging box 3, the cement raw materials have better fluidity, the cement raw materials are homogenized for three times, the materials after the three times are discharged through the discharge opening at the bottom of the ash bin, the center of the discharge area at the lower part of the warehouse body 1 can be uniformly discharged, the materials can be discharged through the decompression cone 2, the cement raw materials between the homogenization area and the cement is improved through the multiple discharging operations, the cement raw materials are sintered, and the quality of the warehouse is improved.

In this embodiment, the premixing mechanism 14 includes a mixing box 15, a driving member 16, a rotating rod 17 and a scattering component 18, the mixing box 15 is installed on the warehouse body 1, the feeding end of the mixing box 15 is connected with the conveying pipe 12 and the ash returning pipe 13, the discharging end of the mixing box 15 is communicated with the feeding port 5, a fresh raw material conveying pipeline is further connected to the mixing box 15 and used for conveying fresh raw materials, the driving member 16 is installed on the outer wall of the mixing box 15, the driving member 16 is located on one side of the mixing box 15 close to the conveying pipe 12, one end of the rotating rod 17 is connected with the output end of the driving member 16, the other end of the rotating rod 17 extends into the mixing box 15, the scattering component 18 is arranged on the rotating rod 17, the scattering component 18 includes a plurality of helical blades 19 and a plurality of stirring blades 20, the helical blades 19 are located at one end close to the conveying pipe 12, and the stirring blades 20 are located at one end close to the discharging port 6.

In specific implementation, the driving piece 16 is started, the driving piece 16 drives the rotating rod 17 and the scattering assembly 18 to synchronously rotate, and after raw materials in the warehouse body 1 and raw materials from the ash return pipe 13 enter the mixing box 15, the spiral blades 19 and the stirring blades 20 uniformly stir and mix the materials.

In this embodiment, the driving member 16 is a servo motor, so that the conveying speed of the material can be conveniently adjusted by controlling the rotation speed of the motor.

In this embodiment, the ash returning pipe 13 is provided with a first control valve 21, so as to control the ash returning speed.

In the embodiment, a punching flowmeter 22 is arranged between the discharge opening 6 and the air chute 10, so that the equipment is ensured not to be influenced by technological environment factors such as material flow, vibration, wind speed and the like in the weighing work, and continuous high-precision work is ensured.

In this embodiment, be provided with viewing window 23 on the lateral wall of the storehouse body 1, the operating personnel of being convenient for observe the mixed condition of the interior material of storehouse body 1 to the circulation of the material of being convenient for in time stop is carried.

The working principle of the cement raw meal homogenizing warehouse provided by the embodiment of the application is as follows:

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a cement raw meal homogenization storehouse, includes the storehouse body, decompression awl, charging box and guide cone, storehouse body top is provided with the feed inlet, storehouse body bottom is provided with the discharge opening, decompression awl is steel cone structure, decompression awl by a plurality of bracing pieces support in the discharge opening top, the charging box sets up a plurality of, a plurality of charging box annular distribute in storehouse body bottom, the charging box is located the discharge opening with between the storehouse body lateral wall, and every the charging box all through the admission line with the air supply intercommunication that the outside of storehouse set up, the guide cone is the conical plate body structure, the guide cone is located in the storehouse body, the guide cone is located decompression cone top, run through on the plate body of guide cone and be provided with a plurality of feed inlets, its characterized in that: still include material circulation homogenization device, material circulation homogenization device includes air chute, bucket elevator, conveyer pipe, ash return pipe and pre-mixing mechanism, air chute's pan feeding end with the discharge opening links to each other, air chute's discharge end with bucket elevator links to each other, conveyer pipe one end with bucket elevator's discharge end links to each other, the conveyer pipe other end with pre-mixing mechanism's pan feeding end is connected, ash return pipe is located pre-mixing mechanism's pan feeding end, pre-mixing mechanism locates on the storehouse body, pre-mixing mechanism is used for coming from conveyer pipe ash return pipe's mixed material carries out pre-homogenization treatment, and will mix the material after the feed inlet is passed through the storehouse is internal.

2. A cement raw meal homogenizing silo according to claim 1, wherein: the pre-mixing mechanism comprises a mixing box, a driving piece, a rotating rod and a scattering component, wherein the mixing box is installed on the warehouse body, a feeding end of the mixing box is connected with the conveying pipe and the ash returning pipe, a discharging end of the mixing box is communicated with the feeding inlet, the driving piece is installed on the outer wall of the mixing box, the driving piece is located on one side, close to the conveying pipe, of the mixing box, one end of the rotating rod is connected with an output end of the driving piece, the other end of the rotating rod extends into the mixing box, and the scattering component is arranged on the rotating rod.

3. A cement raw meal homogenizing silo according to claim 2, wherein: the breaking assembly comprises a plurality of spiral blades and a plurality of stirring blades, wherein the spiral blades are positioned at one end close to the conveying pipe, and the stirring blades are positioned at one end close to the discharge opening.

4. A cement raw meal homogenizing silo according to claim 2, wherein: the driving piece is a servo motor.

5. A cement raw meal homogenizing silo according to claim 1, wherein: and a control valve is arranged on the ash return pipe.

6. A cement raw meal homogenizing silo according to claim 1, wherein: and a punching flowmeter is arranged between the discharge opening and the air chute.

7. A cement raw meal homogenizing silo according to claim 1, wherein: and an observation window is arranged on the outer side wall of the warehouse body.