CN219116629U

CN219116629U - Powder conveying device

Info

Publication number: CN219116629U
Application number: CN202223579002.XU
Authority: CN
Inventors: 陈波; 朱其川; 李东红; 郭文洁; 王涛; 丰杰; 崔炳哲; 张光明; 张群利; 韦柏
Original assignee: Henan Zhonglian Tongli Materials Co ltd; Luoyang Huanghe Tongli Cement Co ltd; Anhui Meinolf Technology Co ltd
Current assignee: Henan Zhonglian Tongli Materials Co ltd; Luoyang Huanghe Tongli Cement Co ltd; Anhui Meinolf Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-02
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the technical field of material conveying, and in particular provides a powder conveying device, which comprises: a receiving part; the feeding part is communicated with the receiving part and is used for feeding materials into the receiving part; the discharging part is communicated with the receiving part and is used for discharging materials in the receiving part; the air supply part is communicated with the material receiving part and is used for supplying air into the material receiving part and providing aerodynamic force for discharging of the discharging part; the air supply part can do reciprocating motion relative to the material receiving part, and the distance between the air supply part and the material discharging part is increased or decreased along with the change of the reciprocating motion. The utility model effectively solves the problems of manual intervention and low conveying efficiency in the recycling of cement clinker residues in the prior art, and achieves the purposes of automatic feeding and efficient feeding.

Description

Powder conveying device

Technical Field

The utility model relates to the technical field of material conveying, in particular to a powder conveying device.

Background

At present, in a production line of cement clinker (the cement clinker is a semi-finished product obtained by taking limestone, clay and iron materials as main raw materials, preparing raw materials according to a proper proportion, burning the raw materials to a partial or complete molten state and finally cooling), the waste materials or the residual materials of the cement clinker are required to be conveyed and treated in a recycling stage of the cement clinker. However, no special automatic conveying device exists in the market at present, the excess materials can be transported only manually or semi-automatically, the recycling efficiency is low in the mode, the requirement of continuous recycling of batches of clinker cannot be met, and the cement clinker has a large amount of dust and can cause harm to the health of operators due to long-time manual operation.

Disclosure of Invention

The utility model provides a powder conveying device which is used for solving the problems that in the prior art, manual intervention is needed for recycling cement clinker residues and conveying efficiency is low, and achieving the purposes of automatic feeding and efficient feeding.

The utility model provides a powder conveying device, comprising: a receiving part; the feeding part is communicated with the receiving part and is used for feeding materials into the receiving part; the discharging part is communicated with the receiving part and is used for discharging materials in the receiving part; the air supply part is communicated with the material receiving part and is used for supplying air into the material receiving part and providing aerodynamic force for discharging of the discharging part; the air supply part can do reciprocating motion relative to the material receiving part, and the distance between the air supply part and the material discharging part is increased or decreased along with the change of the reciprocating motion.

According to the powder conveying device provided by the utility model, the receiving part comprises: a receiving chamber; the feed section includes: the feeding pipe is communicated with the inner cavity of the receiving chamber and is vertically downwards arranged; the discharging part comprises: the discharging pipe is communicated with the inner cavity of the receiving chamber; the air supply part includes; the air inlet pipe is communicated with the inner cavity of the material receiving chamber, the air outlet of the air inlet pipe is opposite to the feeding inlet of the material discharging pipe, the air inlet pipe can reciprocate relative to the cavity wall of the material receiving chamber, and the distance between the air outlet of the air inlet pipe and the feeding inlet of the material discharging pipe is increased or decreased along with the change of the reciprocation.

According to the powder conveying device provided by the utility model, the air inlet pipe is in sliding connection with the material receiving chamber, and the material receiving chamber is provided with the fastening mechanism for restraining the air inlet pipe from sliding.

According to the powder conveying device provided by the utility model, one end of the feeding pipe, which is close to the receiving chamber, is provided with the necking section.

According to the powder conveying device provided by the utility model, the discharging pipe comprises a venturi pipe for generating a venturi effect.

According to the powder conveying device provided by the utility model, the venturi tube is made of wear-resistant materials.

According to the powder conveying device provided by the utility model, the fastening mechanism comprises: the jackscrew, set up the screw hole on the material receiving room outer wall, the jackscrew with screw hole screw thread cooperation can support and press in the intake pipe.

According to the powder conveying device provided by the utility model, the sealing ring is arranged at the joint of the air inlet pipe and the material receiving chamber and is used for preventing air leakage at the joint of the material receiving chamber and the air inlet pipe.

According to the powder conveying device, through the combined installation of the feeding part, the discharging part, the receiving part and the air supply part, the incoming materials from the feeding part can be gathered in the receiving part, and the powdery residual materials are automatically blown to the discharging part under the action of the air supply part, so that the problem that the cement clinker residual materials cannot be automatically conveyed is effectively solved; meanwhile, under the condition that the air inlet part supplies air, a negative pressure state is caused to the joint of the feeding part and the receiving part, so that incoming materials can be automatically sucked; by arranging the air supply part to reciprocate relative to the material receiving part, the distance between the air supply part and the material discharging part can be increased or decreased along with the change of the reciprocating motion, and the adjustment of the feeding speed can be realized.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the embodiments or the drawings needed in the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a powder conveying device provided by the utility model;

FIG. 2 is a longitudinal cross-sectional perspective view of FIG. 1;

FIG. 3 is a schematic view of a longitudinal sectional plane structure of the powder conveying device provided by the utility model.

Reference numerals:

1-feeding pipe, 101-necking section, 2-receiving chamber, 201-pipe connecting block, 202-jackscrew, 203-sealing ring, 3-discharging pipe, 301-venturi pipe and 4-air inlet pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, 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.

In the description of the embodiments of the present utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The technical solution of the present utility model is described below with reference to the embodiments shown in fig. 1 and 2:

the embodiment of the utility model provides a powder conveying device, which comprises: the device comprises a receiving part, a feeding part, a discharging part and an air supply part, wherein the feeding part is communicated with the receiving part and is used for feeding materials into the receiving part; the discharging part is communicated with the receiving part and is used for discharging materials in the receiving part; the air supply part is communicated with the material receiving part and is used for supplying air into the material receiving part and providing aerodynamic force for discharging of the material receiving part; the air supply part can do reciprocating motion relative to the material receiving part, and the distance between the air supply part and the material discharging part is increased or decreased along with the change of the reciprocating motion.

In a specific application, the feeding part can be a feeding pipe, a feeding funnel or other material conveying equipment, and in the embodiment, the feeding pipe 1 is preferable, so that the feeding part is convenient to connect with the material conveying equipment of the previous stage and can be installed through a flange plate; the material receiving part can be a material receiving box or a material receiving chamber 2 at the junction of a material feeding pipe and a material discharging pipe, and the like, and in the embodiment, the material receiving chamber 2 at the junction of the material discharging pipe is preferable, so that the device has the advantages of being convenient for timely discharging powdery materials and not accumulating in the material receiving part; the discharging part is preferably a discharging pipe 3, so that the discharging part is convenient to connect with the next-stage material conveying equipment and can be installed through a flange plate; the air inlet may preferably be an air inlet pipe 4 which communicates with the receiving chamber 2 via a connection mechanism.

The air inlet pipe 4 can do reciprocating motion relative to the material receiving chamber 2, namely the air inlet pipe 4 can be a metal pipe with a smooth outer surface or a metal pipe with an external thread on the outer surface, and correspondingly, the metal pipe with the smooth outer surface is in sliding connection with the material receiving chamber 2 through a through hole without an internal thread; the metal pipe with external threads on the outer surface is connected with the material receiving chamber 2 through a through hole with internal threads, so that the reciprocating motion is realized; the air outlet port of the air inlet pipe 4 is always opposite to the feeding port of the discharging port, so that air can be timely and accurately fed into the discharging pipe, and timely conveying of powder is ensured. When the air inlet pipe 4 reciprocates relative to the receiving chamber, the distance between the air outlet port of the air inlet pipe 4 and the material inlet port of the material outlet is also changed, so that the purpose of the arrangement is to change the pressure in the material inlet pipe, when the air inlet pipe moves towards the direction of the cavity in the receiving chamber, the pressure in the material inlet pipe is gradually reduced, and when the air inlet pipe moves towards the direction of the outer side of the receiving chamber, the pressure in the material inlet pipe is gradually increased, so that the material suction rate of the material inlet pipe is further controlled.

According to the powder conveying device provided by the embodiment of the utility model, through the combined installation of the feeding part, the discharging part, the receiving part and the air supply part, the incoming materials from the feeding part can be gathered in the receiving part, and the powdery residual materials are automatically blown to the discharging part under the action of the air supply part, so that the problem that the cement clinker residual materials cannot be automatically conveyed is effectively solved; meanwhile, under the condition that the air inlet part supplies air, a negative pressure state is caused to the joint of the feeding part and the receiving part, so that incoming materials can be automatically sucked; by arranging the air supply part to reciprocate relative to the material receiving part, the distance between the air supply part and the material discharging part can be increased or decreased along with the change of the reciprocating motion, and the adjustment of the feeding speed can be realized.

According to the powder conveying device provided by the embodiment of the utility model, as shown in fig. 1, 2 and 3, the receiving part comprises: a receiving chamber 2; the feeding portion includes: the feeding pipe 1 is communicated with the inner cavity of the receiving chamber and is vertically arranged downwards; the discharging part comprises: the discharging pipe 3 is communicated with the inner cavity of the receiving chamber; the air supply part comprises; the air inlet pipe 4 is communicated with the inner cavity of the material receiving chamber, the air outlet of the air inlet pipe is opposite to the feeding hole of the material discharging pipe, the air inlet pipe can do reciprocating motion relative to the cavity wall of the material receiving chamber, and the distance between the air outlet of the air inlet pipe and the feeding hole of the material discharging pipe is increased or decreased along with the change of the reciprocating motion.

In a specific application, the feeding part may be a feeding pipe 1, a feeding funnel or other material conveying equipment, in this embodiment, the feeding pipe 1 is preferred, so as to be convenient for connection with the material conveying equipment of the previous stage, and can be installed through a flange; the material receiving part can be a material receiving box or a material receiving chamber 2 at the junction of a material feeding pipe and a material discharging pipe, and the like, and is preferably a material receiving chamber 2 at the junction of the material discharging pipe in the embodiment, so that the device has the advantages of being convenient for timely discharging powdery materials and not accumulating in the material receiving part; the discharging part is preferably a discharging pipe 3, so that the discharging part is convenient to connect with the next-stage material conveying equipment and can be installed through a flange plate; the air inlet may preferably be an air inlet pipe 4 which communicates with the receiving chamber 2 via a connection mechanism.

The air inlet pipe 4 can do reciprocating motion relative to the material receiving chamber 2, namely the air inlet pipe 4 can be a metal pipe with a smooth outer surface or a metal pipe with an external thread on the outer surface, and correspondingly, the metal pipe with the smooth outer surface is in sliding connection with the material receiving chamber 2 through a through hole without an internal thread; the metal pipe with external threads on the outer surface is connected with the material receiving chamber 2 through a through hole with internal threads, so that the reciprocating motion is realized; of course, in the state that the outer surface of the air inlet pipe is smooth, the pipe connecting block 201 should be welded and fixed with the material receiving chamber 2, and the air inlet pipe can slide in the pipe connecting block; when the outer surface of the air inlet pipe is in an external thread state, the pipe connecting block 201 can be rotationally connected with the material receiving chamber 2 through a bearing, and when the depth of the air inlet pipe needs to be adjusted, the pipe connecting block only needs to be rotated; the pipe connection block 201 may be welded to the receiving chamber 2, and the air inlet pipe needs to be rotated when the depth of the air inlet pipe needs to be adjusted, which is of course installed in a rotating manner with external air supply equipment.

The air outlet port of the air inlet pipe 4 is always opposite to the feeding port of the discharging port, so that air can be timely and accurately fed into the discharging pipe, and further timely conveying of powder is ensured. When the air inlet pipe 4 reciprocates relative to the receiving chamber, the distance between the air outlet port of the air inlet pipe 4 and the feeding port of the discharging port also changes, so that the purpose of the arrangement is to change the pressure in the feeding pipe.

According to the powder conveying device provided by the embodiment of the utility model, as shown in fig. 1, 2 and 3, the air inlet pipe 4 is in sliding connection with the material receiving chamber 2, and the material receiving chamber 2 is provided with a fastening mechanism for restraining the sliding of the air inlet pipe. The fastening mechanism includes: the jackscrew 202 is offered the screw hole on the material receiving room outer wall, and the jackscrew is joined in marriage with the screw hole screw thread and can support and press in the intake pipe.

In a specific application, the air inlet pipe 4 is preferably a metal pipe with a smooth outer surface, and a pipe connecting block 201 is arranged at the joint of the air inlet pipe and the material receiving chamber, the pipe connecting block is welded at an air inlet port of the material receiving chamber 2 (see fig. 3), the pipe connecting block 201 is a metal cylindrical connecting piece, a cylindrical through hole is arranged at the center of the pipe connecting piece, and the air inlet pipe 4 penetrates through the through hole and extends into the inner cavity of the material receiving chamber 2, so that the sliding connection of the air inlet pipe and the material receiving chamber is realized; and the air outlet port of the air inlet pipe 4 is a conical shrinkage type air outlet so as to increase the air inlet flow rate.

A threaded through hole is formed in the radial direction of the pipe connecting block 201, and threaded through holes of the same size are formed in the outer wall of the receiving chamber 2, and if the adjusted air inlet pipe 4 needs to be fixed, only the jackscrew 202 needs to be installed in the threaded through hole and screwed up, so that the lower end face of the jackscrew 202 is abutted against the outer surface of the air inlet pipe, and sliding constraint on the air inlet pipe is achieved.

According to the powder conveying device provided by the embodiment of the utility model, the air inlet pipe is connected to the material receiving chamber in a sliding manner, so that the distance between the air outlet port of the air inlet pipe and the material inlet of the material discharging pipe can be effectively realized, the air pressure value in the material feeding pipe 1 is further regulated, when the air inlet pipe moves towards the direction of the inner cavity of the material receiving chamber, the pressure in the material feeding pipe is gradually reduced, and when the air inlet pipe moves towards the direction of the outer side of the material receiving chamber, the pressure in the material feeding pipe is gradually increased, so that the material sucking rate of the material feeding pipe is further controlled. Because the greater the air flow velocity in the receiving chamber 2, the lower the pressure compared to the outside atmosphere.

According to the powder conveying device provided by the embodiment of the utility model, as shown in fig. 1, 2 and 3, one end of the feeding pipe 1, which is close to the receiving chamber 2, is provided with a necking section 101.

In a specific application, one end of the feeding pipe 1, which is close to the receiving chamber 2, is provided with a necking section 101, the whole of the necking section is contracted, the air flow speed at the contracting opening is larger than that at the feeding opening at the upper end according to the Venturi effect, so that the air pressure at the contracting opening is smaller than the air pressure value at the feeding opening.

According to the powder conveying device provided by the embodiment of the utility model, as shown in fig. 1, 2 and 3, the discharging pipe 3 comprises a venturi 301 for generating a venturi effect, and the venturi 301 is made of wear-resistant materials.

In a specific application, a wear-resistant ceramic tube is arranged in the discharging tube 3, the inner cavity of the wear-resistant ceramic tube is in a venturi tube shape (venturi effect means that when gas or liquid flows in the venturi tube, dynamic pressure reaches a maximum value and static pressure reaches a minimum value at the narrowest part of a pipeline, the speed of fluid rises due to the reduction of the cross section area of the through flow, the whole surge flow is subjected to a pipeline shrinkage process at the same time, so that the pressure is reduced at the same time, and then a pressure difference is generated, the pressure difference is used for providing external suction force for the fluid), namely, a material inlet section is a closed circular table-shaped channel, a material transmitting section is a cylindrical channel with the same diameter, and a material outlet section is an expanded circular table-shaped channel, wherein the purpose of the closed material inlet section is to accelerate the flow speed of a gas mixture, thereby further reducing the air pressure value in the material inlet chamber, the material inlet into the discharging tube is fast, the purpose of the expanded material outlet section is not to store powder, the purpose of the expanded material outlet section is to reduce the flow speed in the tube, the air pressure value is improved, thereby achieving the original conveying speed, and smooth conveying is ensured. Setting the venturi as a wear resistant ceramic material may increase the service life of the venturi.

According to the powder conveying device provided by the embodiment of the utility model, as shown in fig. 3, a sealing ring 203 is arranged at the joint of the air inlet pipe 4 and the material receiving chamber 2, so as to prevent air leakage at the joint of the material receiving chamber and the air inlet pipe.

In a specific application, the sealing ring 203 is preferably a rubber sealing ring, which is used for preventing air leakage at the connection part of the receiving chamber and the air inlet pipe. The sealing ring can be clamped in the pipe connecting block 201 and is in interference fit with the air inlet pipe 4, and the air inlet pipe 4 and the pipe connecting block 201 are in clearance fit, so that the sealing ring 203 can still keep a good sealing effect in the process of relative sliding of the air inlet pipe 4 and the pipe connecting block 201, and air leakage is avoided.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A powder delivery device, comprising:

a receiving part;

the feeding part is communicated with the receiving part and is used for feeding materials into the receiving part;

the discharging part is communicated with the receiving part and is used for discharging materials in the receiving part;

the air supply part is communicated with the material receiving part and is used for supplying air into the material receiving part and providing aerodynamic force for discharging of the discharging part;

the air supply part can do reciprocating motion relative to the material receiving part, and the distance between the air supply part and the material discharging part is increased or decreased along with the change of the reciprocating motion.

2. The powder delivery device of claim 1, wherein:

the material receiving part comprises:

a receiving chamber;

the feed section includes:

the feeding pipe is communicated with the inner cavity of the receiving chamber and is vertically downwards arranged;

the discharging part comprises:

the discharging pipe is communicated with the inner cavity of the receiving chamber;

the air supply part includes:

the air inlet pipe is communicated with the inner cavity of the material receiving chamber, the air outlet of the air inlet pipe is opposite to the feeding inlet of the material discharging pipe, the air inlet pipe can reciprocate relative to the cavity wall of the material receiving chamber, and the distance between the air outlet of the air inlet pipe and the feeding inlet of the material discharging pipe is increased or decreased along with the change of the reciprocation.

3. The powder delivery device of claim 2, wherein: the air inlet pipe is in sliding connection with the material receiving chamber, and a fastening mechanism is arranged on the material receiving chamber and used for restraining the air inlet pipe from sliding.

4. The powder delivery device of claim 2, wherein the feed tube has a neck section at an end thereof adjacent the receiving chamber.

5. The powder delivery device of claim 2, wherein the discharge tube includes a venturi for creating a venturi effect.

6. The powder delivery device of claim 5, wherein the venturi is a wear resistant material.

7. A powder delivery device as set forth in claim 3, wherein the fastening mechanism includes: the jackscrew, set up the screw hole on the material receiving room outer wall, the jackscrew with screw hole screw thread cooperation can support and press in the intake pipe.

8. A powder delivery device according to claim 3, wherein a sealing ring is provided at the junction of the inlet pipe and the receiving chamber for preventing air leakage at the junction of the receiving chamber and the inlet pipe.