CN215952185U

CN215952185U - Horizontal preheater for rotary kiln

Info

Publication number: CN215952185U
Application number: CN202121178670.4U
Authority: CN
Inventors: 李宏彬; 朱军; 杨福文
Original assignee: Astron Titanium Yingkou Co ltd
Current assignee: Astron Titanium Yingkou Co ltd
Priority date: 2021-05-29
Filing date: 2021-05-29
Publication date: 2022-03-04
Anticipated expiration: 2031-05-29

Abstract

The utility model discloses a horizontal preheater for a rotary kiln, which comprises a device body, wherein a first support and a second support are arranged on the lower surface of the device body, a feed inlet and an air outlet are arranged on the upper surface of the device body, a guide chute is arranged inside the device body, a conveyor belt is arranged on the inner surface of the guide chute, fixing sleeves are symmetrically arranged at the tail end of the guide chute, a connecting shaft is arranged between the two fixing sleeves, a wind plate is arranged on the surface of the connecting shaft, the connecting shaft and the wind plate are driven to rotate through the fixing sleeves, a part of gas inside the rotary kiln is blown into the device body, the first support and the second support are arranged to obliquely place the device body, so that the gas inside the rotary kiln can conveniently enter the device body to preheat the material inside the device body, the material inside the device body is prevented from directly entering the rotary kiln, and the power consumption of the rotary kiln is increased, the production cost is increased.

Description

Horizontal preheater for rotary kiln

Technical Field

The utility model relates to the technical field of rotary kiln preheaters, in particular to a horizontal preheater for a rotary kiln.

Background

Rotary kilns are rotary kilns, commonly known as rotary kilns, and can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the difference of materials to be treated. In recent years, with the implementation of national environmental protection policies and resource use policies, the rotary kiln gradually replaces an earth kiln and a shaft kiln which have backward facilities, large pollution and high energy consumption.

When metallurgical pellets in a normal temperature state directly enter a rotary kiln for calcination, the metallurgical pellets have great influence on the calcination temperature in the rotary kiln, the power consumption is increased, the production cost is increased, meanwhile, materials vertically fall in the transportation process, fine powder is generated by mutual collision, fine powder is easily generated by fine division and accumulation, and the capacity of a production line is further influenced, so that the horizontal preheater for the rotary kiln is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a horizontal preheater for a rotary kiln, which aims to solve the problems that metallurgical pellets in a normal temperature state directly enter the rotary kiln for calcination, the calcination temperature in the rotary kiln is greatly influenced, the power consumption is increased, the production cost is increased, materials vertically fall in the transportation process, the materials collide with each other to generate fine powder, and fine powder is easily generated due to fine segmentation and stacking, so that the capacity of a production line is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a horizontal preheater for rotary kiln, includes the device body, the lower surface of device body is equipped with first support and second support, the height that highly is greater than the second support of first support, the upper surface of device body is equipped with feed inlet and air outlet, the inside of device body is equipped with the baffle box, the internal surface of baffle box is equipped with the conveyer belt, the terminal symmetry of baffle box is equipped with fixed cover, two be equipped with the connecting axle between the fixed cover, the surface of connecting axle is equipped with the aerofoil, and two the aerofoil is rotatory relatively.

Preferably, the lower surface of the conveyor belt is provided with a plurality of connecting rods, a plurality of interference movable rollers are uniformly distributed on the surfaces of the connecting rods, gears penetrate through the guide chute at two ends of the connecting rods, and racks are meshed on the surfaces of the gears.

Preferably, the surface of the air outlet is provided with a filter screen, and the feed inlet is positioned on one side of the surface of the device body, which is close to the first support.

Preferably, the connecting rod and the disturbing roller are fixedly connected with a gear, the gear is rotatably connected with the guide chute, and a motor penetrates through the device body and is arranged outside the gear, which is close to the first support.

Preferably, the rotation direction of the disturbance roller is opposite to the discharging direction of the material guide chute.

Preferably, the inner surface of the device body is provided with a limiting plate.

Compared with the prior art, the utility model has the beneficial effects that: a horizontal preheater for a rotary kiln has the following advantages:

according to the rotary kiln, the connecting shaft and the air plate are driven to rotate through the fixing sleeve, a part of gas in the rotary kiln is blown into the device body, the device body is obliquely placed through the first support and the second support, so that the gas in the rotary kiln can conveniently enter the device body, materials in the device body are preheated, the materials are prevented from directly entering the rotary kiln, the consumed power of the rotary kiln is increased, the production cost is increased, meanwhile, the whole device is horizontally placed, the height difference is avoided, smooth transportation of the materials is guaranteed, no powder flying is generated, and the normal production of a production line is guaranteed.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a sectional structural view of a material guide chute according to the present invention;

fig. 4 is a schematic view of the construction of the gear and rack connection of the present invention.

In the figure: 1-device body, 2-first support, 3-second support, 4-feeding hole, 5-air outlet, 6-guide chute, 7-conveyor belt, 8-fixing sleeve, 9-connecting shaft, 10-wind plate, 11-connecting rod, 12-disturbing roller, 13-gear, 14-rack, 15-filter screen, and 16-limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a horizontal preheater for a rotary kiln comprises a device body 1, wherein a first support 2 and a second support 3 are arranged on the lower surface of the device body 1, the height of the first support 2 is larger than that of the second support 3, a height difference is formed to facilitate material transportation, a feed inlet 4 and an air outlet 5 are arranged on the upper surface of the device body 1, a guide chute 6 is arranged inside the device body 1, a conveyor belt 7 is arranged on the inner surface of the guide chute 6, fixing sleeves 8 are symmetrically arranged at the tail ends of the guide chute 6, a motor is arranged inside the fixing sleeves 8, a connecting shaft 9 is arranged between the two fixing sleeves 8, a wind plate 10 is arranged on the surface of the connecting shaft 9, the two wind plates 10 rotate relatively, the tail ends of the guide chute 6 are connected with the rotary kiln, and the connecting shaft 9 is driven to drive the wind plate 10 to work under the action of the motor inside the fixing sleeves 8, the inside of the gas suction device body 1 inside the rotary kiln is preheated, and meanwhile, the length of the air plate 10 is smaller than the width of the material guide groove 6, so that the air plate 10 is prevented from being touched with materials, and the materials are prevented from being transported.

The control mode of the present application is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming by those skilled in the art, and the present application is common knowledge in the field, and the present application mainly protects the mechanical device, so the control mode and the circuit connection are not explained in detail in the present application.

Particularly, the lower surface of conveyer belt 7 is equipped with a plurality of connecting rods 11, the surface evenly distributed of connecting rod 11 has if disturb movable roller 12, the baffle box 6 is run through at the both ends of connecting rod 11 and is equipped with gear 13, gear 13 surface meshing has rack 14, and disturbance roller 12 on connecting rod 11 surface acts on the surface of conveyer belt 7, and under gear 13's effect, the chaos degree on increase conveyer belt 7 surface has guaranteed the efficiency of preheating.

Particularly, the surface of air outlet 5 is equipped with filter screen 15, feed inlet 4 is located the device body 1 surface and is close to one side of first support 2, and some smoke and dust in the gas are collected to the design of filter screen 15, prevent direct discharge contaminated air, and feed inlet 4 is close to first support 2 and makes things convenient for the material to utilize the difference in height to transport on baffle box 6 surface.

Specifically, the connecting rod 11 and the disturbing roller 12 are both fixedly connected with a gear 13, the gear 13 is rotatably connected with the material guide chute 6, a motor is arranged on the outer portion, close to the first support 2, of the gear 13 and drives one of the gears 13 to rotate through the external motor, the gear 13 rotates to drive a rack 14 to rotate, the rack 14 drives the other gears 13 to rotate, and the gear 13 drives the connecting rod 11 and the disturbing roller 12 to rotate to act on the surface of the conveyor belt 7.

Particularly, the rotation direction of the disturbance roller 12 is opposite to the discharging direction of the guide chute 6, materials on the surface of the guide chute 6 can slide along the surface of the guide chute 6 under the action of the first support 2 and the second support 3, the disturbance roller 12 rotates reversely, the materials can be turned over, and when the gas passes through the surface of the materials, the materials are preheated in an all-round mode, and the preheating effect is greatly improved.

Specifically, the inner surface of the device body 1 is provided with limiting plates 16, wherein the number of the limiting plates 16 corresponds to the number of the connecting rods 11, the limiting plates 16 are set to limit the flow of gas, so that when the gas in the rotary kiln enters the device body 1 under the action of the air plate 10, the gas is ensured to cling to the material on the surface of the conveyor belt 7, the maximum preheating effect is ensured,

the working principle is as follows: when the rotary kiln material feeding device is used, firstly, the material guide groove 6 is connected with a rotary kiln, then, materials are added into the device body 1 from the material feeding hole 4, the materials fall onto the surface of the conveyor belt 7 and move on the surface of the conveyor belt 7 under the action of height difference, meanwhile, the motors inside the outer portion of the device body 1 and the motors inside the outer portion of the device body 1 are fixed through the external controller, the materials rotate through the connecting shaft 9 and the air plate 10, gas inside the rotary kiln is sucked into the device body 1, the gear 13 directly connected with the motor outside the device body 1 rotates, the gear 13 rotates to drive the rack 14 to be meshed and rotated, the rack 14 drives the rest gears 13 to rotate, the rest gears 13 rotate to drive the connecting rod 11 and the disturbance roller 12 to rotate, the surfaces of the conveyor belt 7 are acted, disturbance of the materials is achieved, the materials are sufficiently preheated by convenient gas, and finally enter the rotary kiln.

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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A horizontal preheater for a rotary kiln, comprising a device body (1), characterized in that: the lower surface of device body (1) is equipped with first support (2) and second support (3), the height that highly is greater than second support (3) of first support (2), the upper surface of device body (1) is equipped with feed inlet (4) and air outlet (5), the inside of device body (1) is equipped with baffle box (6), the internal surface of baffle box (6) is equipped with conveyer belt (7), the terminal symmetry of baffle box (6) is equipped with fixed cover (8), two be equipped with connecting axle (9) between fixed cover (8), the surface of connecting axle (9) is equipped with aerofoil (10), and two aerofoil (10) relative rotation.

2. A horizontal preheater for a rotary kiln as set forth in claim 1, wherein: the lower surface of the conveyor belt (7) is provided with a plurality of connecting rods (11), a plurality of interference moving rollers (12) are uniformly distributed on the surfaces of the connecting rods (11), gears (13) penetrate through the guide chute (6) at two ends of each connecting rod (11), and racks (14) are meshed on the surfaces of the gears (13).

3. A horizontal preheater for a rotary kiln as set forth in claim 1, wherein: the surface of air outlet (5) is equipped with filter screen (15), feed inlet (4) are located the device body (1) surface and are close to one side of first support (2).

4. A horizontal preheater for a rotary kiln as set forth in claim 2, wherein: the connecting rod (11) and the disturbing roller (12) are fixedly connected with a gear (13), the gear (13) is rotatably connected with the guide chute (6), and a motor is arranged outside the gear (13) close to the first support (2) and penetrates through the device body (1).

5. A horizontal preheater for a rotary kiln as set forth in claim 2, wherein: the rotating direction of the disturbing roller (12) is opposite to the discharging direction of the material guide groove (6).

6. A horizontal preheater for a rotary kiln as set forth in claim 2, wherein: the inner surface of the device body (1) is provided with a limit plate (16).