CN220931696U - Roller kiln reinforced cooling structure - Google Patents

Abstract

The utility model relates to the field of kiln equipment, in particular to a roller kiln reinforced cooling structure, which comprises a kiln cooling section, wherein a conveying roller is arranged in the kiln cooling section, a plurality of saggers for containing materials are placed on the conveying roller, the tail end of the kiln cooling section is provided with an outlet replacement chamber, the reinforced cooling structure comprises a transitional cooling bin arranged at the outlet end of the outlet replacement chamber, at least two sections of differential rollers are arranged in the transitional cooling bin and are respectively driven by separate motors, so that the saggers passing through the transitional cooling bin are separated front and back at set intervals, the bottom of the transitional cooling bin is provided with a cooling air inlet pipe, purge gas for taking away the heat of the surface of the saggers is pumped into the transitional cooling bin, and the top of the transitional cooling bin is provided with an air outlet pipe. According to the roller kiln reinforcing cooling structure, the transition cooling bin is added behind the outlet replacement chamber, materials are separated front and back by a certain distance, and the surface heat of the sagger is taken away by the cooperation of the sweeping gas, so that the purpose of reinforcing the cooling effect is achieved.

Description

Roller kiln reinforced cooling structure

Technical Field

The utility model relates to the field of kiln equipment, in particular to a roller kiln reinforced cooling structure.

Background

The sintering process of the anode and cathode materials in the lithium battery industry basically adopts a high-temperature roller kiln continuous production mode, and according to the process requirements, the materials are required to be cooled below a certain temperature after being sintered at a high temperature so as to ensure the qualified quality of the products.

Roller kilns generally cool high temperature sintered materials by water cooling, direct air cooling, indirect air cooling and the like. As shown in fig. 1, in the conventional roller kiln, a conveying roller 2 'is provided with saggers 3' for containing materials, each sagger is sintered by a high-temperature section in a leaning way, then conveyed to a cooling section 1 'for cooling, and finally reaches an outlet replacement chamber 4' for discharging. In the structure, although the whole production process is continuous, in many cases, the product can not reach the temperature required by the process after exiting the kiln due to the reasons of short process cooling time, poor material heat dissipation, low cooling efficiency and the like, and the product quality is affected to a certain extent, and even the product is disqualified.

Therefore, under the condition that the production process and the material characteristics cannot be adjusted, the roller kiln equipment needs to strengthen the cooling capacity, improve the cooling effect and ensure the product quality.

Disclosure of utility model

Based on the problems, the utility model aims to provide a roller kiln reinforced cooling structure which can enhance the cooling capacity of the existing roller kiln equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a roller kiln strengthens cooling structure, wherein, roller kiln includes kiln cooling section, be provided with the conveying roller in the kiln cooling section, a plurality of casket-like bowl of splendid attire material has been placed on the conveying roller, the end of kiln cooling section is provided with the export replacement room, strengthen cooling structure including setting up in the transition cooling storehouse of the exit end of export replacement room, be provided with two section at least differential roller in the transition cooling storehouse, each section differential roller is by single motor drive respectively for the casket-like bowl through the transition cooling storehouse separates around with the settlement interval, the bottom of transition cooling storehouse is provided with the cooling intake pipe, the cooling intake pipe is to driving into casket-like bowl surface heat purge gas in the transition cooling storehouse, the top of transition cooling storehouse is provided with the outlet duct.

Optionally, a clamping jaw mechanism is arranged in the transitional cooling bin and used for separating the casket cover of the casket from the bowl body or separating the casket from the casket stacked up and down, and the separating state is kept for a set time.

Optionally, the setting time is 5 min-6 min.

Alternatively, the set pitch is greater than 1/2 of the dimension of the sagger in the conveying direction.

Optionally, the air outlet pipe is communicated with the cooling air inlet pipe through an outer circulation pipeline, and the outer circulation pipeline is provided with a gas cooler which is used for circularly cooling the purge gas.

Optionally, the purge gas is nitrogen.

Optionally, the output end of the transitional cooling bin is provided with a sealing door.

In summary, compared with the prior art, the roller kiln reinforcing cooling structure has the beneficial effects that after materials are sintered at high temperature and are normally cooled, the transition cooling bin is added behind the outlet replacement chamber on the premise of meeting the production process beat, the materials are separated front and back by a certain distance, the heat radiating area and space of the materials are increased, and the surface heat of the sagger is taken away by the cooperation of purge gas, so that the purpose of reinforcing the cooling effect is achieved.

Drawings

FIG. 1 is a schematic view of a conventional roller kiln;

FIG. 2 is a schematic view of a roller kiln reinforcing and cooling structure provided by an embodiment of the utility model;

Fig. 3 is a cross-sectional view of a transitional cooling bin in a roller kiln reinforcing cooling structure provided by an embodiment of the utility model.

In the figure:

1', a cooling section; 2', conveying rollers; 3', a sagger; 4', an outlet replacement chamber;

1. A kiln cooling section; 2. a conveying roller; 3. a sagger; 4. an outlet displacement chamber; 5. a transitional cooling bin; 6. a motor; 7. cooling the air inlet pipe; 8. an air outlet pipe; 9. an external circulation pipeline; 10. a gas cooler; 11. a jaw mechanism; 12. closing the door.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, mechanically connected, electrically connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 2 and 3, the present preferred embodiment provides a roller kiln reinforced cooling structure, which is used in a high temperature roller kiln for drying, sintering or similar processes in the lithium battery industry, such roller kiln generally comprises a heating section, a heat preservation section and a cooling section, each section is provided with a conveying roller 2, a plurality of saggers 3 for containing materials are placed on the conveying rollers 2, after the materials (saggers 3) are sintered at high temperature, the temperature in the furnace can be reduced to below 150 ℃ by means of air cooling, water cooling and the like of a kiln cooling section 1, the tail end of the kiln cooling section 1 is provided with an outlet replacement chamber 4, and on the basis, the rear end area of the outlet replacement chamber 4 is further optimized, so as to achieve the purpose of reinforced cooling effect.

Specifically, the reinforced cooling structure comprises a transitional cooling bin 5 arranged at the outlet end of an outlet replacement chamber 4, at least two sections of differential rollers are arranged in the transitional cooling bin 5, each section of differential roller is driven by an independent motor 6, the arrangement running speed of sagger 3 in a kiln is changed, the form of the former sagger 3 which is arranged in the front and back is changed, and the saggers 3 passing through the transitional cooling bin 5 are separated in the front and back at a set interval. The set pitch here is preferably greater than 1/2 of the dimension of the sagger 3 in the conveying direction to ensure a sufficient heat dissipation area and to improve the cooling effect.

On the basis, the bottom of the transition cooling bin 5 is provided with a cooling air inlet pipe 7, purge gas for taking away the heat of the surface of the sagger 3 is pumped into the transition cooling bin 5 by the cooling air inlet pipe 7, the purge gas is preferably nitrogen, and the top of the transition cooling bin 5 is provided with an air outlet pipe 8.

Further, the air outlet pipe 8 is communicated with the cooling air inlet pipe 7 through an outer circulation pipeline 9, and a gas cooler 10 is arranged on the outer circulation pipeline 9, and the gas cooler 10 is used for circularly cooling the purge gas, so that the circulation cooling is realized, the atmosphere is driven to flow, the cooling speed is increased, and the atmosphere temperature in the transition cooling bin 5 is rapidly reduced.

In particular, the transitional cooling chamber 5 is further provided with a clamping jaw mechanism 11, and the clamping jaw mechanism 11 is used for separating the box cover of the sagger 3 from the sagger body or separating the sagger 3 stacked up and down, and keeping the separation state for a set time. The setting time is preferably 5-6 min, so that the heat accumulated in the sagger 3 can be timely and quickly emitted. The jaw mechanism 11 herein is not limited in structure, and mechanisms having the same gripping function are applicable.

The outlet end of the transitional cooling cabin 5 is furthermore provided with a closing door 12.

The material (sagger 3) is sintered at high temperature and is cooled by normal air cooling, water cooling and other means of the kiln cooling section 1, and then the temperature of the material in the kiln is reduced to a certain temperature (about 150 ℃); on the premise of meeting the production process time, a transitional cooling bin 5 is added behind the outlet replacement chamber 4, a high-low speed motor 6 is adopted for adjustment, the sagger 3 is separated front and back by a certain distance, then the nitrogen in the sagger 3 is added for driving in, the surface of the sagger 3 is directly purged, and the heat is quickly taken away, so that the purpose of enhancing the cooling effect is achieved.

Meanwhile, the clamping jaw mechanism 11 is used for separating the sagger 3 up and down, so that the heat dissipation area and the space are increased; in addition, the atmosphere in the transitional cooling bin 5 is subjected to heat exchange through the gas cooler 10, so that the temperature of the atmosphere in the bin is quickly reduced, and the cooling effect is further enhanced. In addition, the transitional cooling bin 5 is arranged at the rear end of the outlet replacement chamber 4, so that maintenance and repair are easy.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a roller kiln strengthens cooling structure, roller kiln includes kiln cooling section (1), be provided with conveyer roll (2) in kiln cooling section (1), a plurality of splendid attire material sagger (3) have been placed on conveyer roll (2), the end of kiln cooling section (1) is provided with export replacement room (4), a serial communication port, strengthen cooling structure including set up in transition cooling storehouse (5) of the exit end of export replacement room (4), be provided with two at least sections differential roller in transition cooling storehouse (5), each section differential roller is driven by individual motor (6) respectively for pass through sagger (3) in transition cooling storehouse (5) separate around with the settlement interval, the bottom in transition cooling storehouse (5) is provided with cooling intake pipe (7), cooling intake pipe (7) to drive into in transition cooling storehouse (5) and take away sagger (3) surface thermal gas, the top in transition cooling storehouse (5) is provided with outlet duct (8).

2. Roller kiln reinforcing cooling structure according to claim 1, characterized in that a clamping jaw mechanism (11) is arranged in the transitional cooling bin (5), and the clamping jaw mechanism (11) is used for separating a box cover of a sagger (3) from a sagger body or separating saggers (3) stacked up and down, and keeping a separation state for a set time.

3. The roller kiln reinforcing and cooling structure according to claim 2, wherein the set time is 5 min-6 min.

4. Roller kiln reinforcing and cooling structure according to claim 1, characterized in that the set pitch is larger than 1/2 of the dimension of the sagger (3) in the transport direction.

5. Roller kiln reinforcing cooling structure according to claim 1, characterized in that the outlet pipe (8) is connected to the cooling inlet pipe (7) via an external circulation pipe (9), and that a gas cooler (10) is arranged on the external circulation pipe (9), the gas cooler (10) being adapted to circulate the purge gas.

6. The roller kiln reinforcing cooling structure of claim 1, wherein the purge gas is nitrogen.

7. Roller kiln reinforcing and cooling structure according to claim 1, characterized in that the output end of the transitional cooling bin (5) is provided with a closing door (12).