CN212870706U

CN212870706U - Furnace body structure of six-push-plate kiln

Info

Publication number: CN212870706U
Application number: CN202021349236.3U
Authority: CN
Inventors: 凌俊; 刘金平; 王世刚; 苏文生; 王好
Original assignee: Hunan Shuoke Thermal Intelligent Equipment Co ltd; CETC 48 Research Institute
Current assignee: Hunan Shuoke Thermal Intelligent Equipment Co ltd; CETC 48 Research Institute
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-04-02
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a furnace body structure of six push pedal kilns, the induction cooker comprises a cooker bod, be equipped with three kilneys in the furnace of furnace body, be equipped with two in every kiln way and be used for transporting the guide rail of saggar, separate through the gib block between two adjacent kilneys. The utility model relates to a three independent kilneys arrange two in each kilneye and carry the product, realize six products and impel simultaneously, very big lifting means productivity separates through the gib block between the kilneye, and the product transport mutual noninterference in the guarantee each kilneye has promoted equipment output by a wide margin under the prerequisite of guaranteeing stable transmission.

Description

Furnace body structure of six-push-plate kiln

Technical Field

The utility model relates to a lithium cell production facility especially relates to an furnace body structure of six push pedal kilns.

Background

With the rapid development of the lithium battery industry in recent years, the market demand of lithium battery materials is also increased in a step-like manner. The pushed slab kiln is one of the most common lithium battery material continuous production devices in the industry at present. In order to improve the productivity, pushed slab kiln equipment has been developed from the earliest single-push-slab structure to the existing four-push-slab structure, and under the condition that the size of a hearth is continuously increased, how to ensure the reliability of the internal structure of the equipment, the stability of product propulsion and the uniformity of a flow field and a temperature field in the hearth is a key problem to be solved in the development of the pushed slab kiln towards the direction of high productivity.

The push pedal kiln that is used for lithium battery material sintering at present mainly is two push pedals or four push pedal kilns, and two push pedal kilns output is little, and production efficiency is low, can't satisfy increasing market demand, and four push pedal kilns have promoted the furnace size on the basis of two push pedal kilns, have increased output, nevertheless also can bring following adverse effect after furnace widens simultaneously:

1) the heating element is broken after being lengthened, the risk is higher, and the broken heating element falls into a hearth, so that the product is prevented from being smoothly pushed, and serious accidents such as kiln blockage are caused.

2) The pushing plates in multiple rows are pushed side by side and are easy to interfere with each other, so that the smooth pushing of products is influenced, and the occurrence of arch plate accidents is caused.

3) After the size of the hearth is increased, the uniformity of the atmosphere and the uniformity of the temperature inside the hearth are difficult to ensure, so that the sintering consistency of the product is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a product transport mutual noninterference in each kiln way of guarantee, guaranteed to stabilize the furnace body structure of six push pedal kilns that have promoted equipment output by a wide margin under the prerequisite of transmission.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a furnace body structure of six push pedal kilns, includes the furnace body, be equipped with three kilneys in the furnace of furnace body, be equipped with two in every kiln way and be used for transporting the guide rail of saggar, separate through the gib block between two adjacent kilneys.

As a further improvement of the above technical solution, the furnace body is provided with an upper heating element and a lower heating element, the upper heating element is located above the saggar, and the lower heating element is located below each row of guide rails.

As a further improvement of the technical scheme, a partition plate is arranged above the hearth, a buffer area is formed between the partition plate and the top of the hearth, the upper heating element is positioned in the buffer area, and the partition plate is provided with a plurality of through holes.

As a further improvement of the technical scheme, a square beam for supporting the partition plate is arranged below the partition plate, a top cover plate is arranged at the top of the hearth, and a separation beam is arranged between the top cover plate and the partition plate.

As a further improvement of the technical scheme, the outer parts of the upper heating element and the lower heating element are sleeved with protective sleeves.

As a further improvement of the technical scheme, the upper heating element and the lower heating element both penetrate through the furnace body, an insulating sealing plug is arranged between the two ends of the upper heating element and the furnace body, and an insulating sealing plug is arranged between the two ends of the lower heating element and the furnace body.

As a further improvement of the technical scheme, a thermocouple for detecting the temperature in the hearth is arranged on the furnace body.

As a further improvement of the technical scheme, the bottom of the hearth is provided with an air inlet channel, the air inlet channel is divided into a main air inlet channel and a plurality of sub air inlet channels, and the sub air inlet channels are arranged at intervals and are communicated with the hearth.

As a further improvement of the technical scheme, at least one exhaust channel is arranged at the top of the hearth.

As a further improvement of the technical scheme, the furnace body comprises a furnace shell and a refractory material positioned in the furnace shell, the main air inlet channel and the plurality of branch air inlet channels are paved in the refractory material, and the exhaust channel penetrates through the refractory material and is communicated with the hearth.

Compared with the prior art, the utility model has the advantages of:

(1) the furnace body structure of six push pedal kilns of this embodiment designs three independent kilns, arranges two guide rails in each kiln way and carries the product, realizes six products and impels simultaneously, greatly promotes the equipment productivity, separates through the gib block between the kiln way, and the product transport in the guarantee each kiln way is mutual noninterference, has promoted equipment output by a wide margin under the prerequisite of guaranteeing stable transmission.

(2) The furnace body structure of six push pedal kilns of this embodiment, through setting up the baffle in last heating element below, make furnace top form confined buffer (heating chamber), can prevent on the one hand that heating element and protective case from directly falling into furnace after breaking because of corroding ageing the emergence, it impels to hinder the product, cause stifled kiln accident, on the other hand, utilize the baffle as heat radiation board, to the interior radiant heat of furnace with the mode of surface radiation, it is better than heating element direct radiation homogeneity, can avoid each heating element resistance difference to cause to generate heat uneven and influence the temperature homogeneity in the furnace.

Drawings

Fig. 1 is a schematic view of the internal cross section of the furnace body structure along the width direction of the furnace.

FIG. 2 is a schematic view of the inner cross section of the furnace body structure along the length direction of the furnace body.

The reference numerals in the figures denote:

1. a furnace body; 101. a furnace shell; 102. a refractory material; 11. a hearth; 12. a kiln way; 13. a buffer area; 2. a sagger; 3. a guide rail; 4. a guide strip; 51. an upper heating element; 52. a lower heating element; 53. protecting the sleeve; 54. an insulating sealing plug; 601. a through hole; 61. a partition plate; 62. a square beam; 63. a top cover plate; 64. a spacer beam; 7. a thermocouple; 8. an air intake passage; 81. a main intake passage; 82. an air inlet channel; 9. an exhaust passage.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 and 2, the furnace body structure of the six-pusher kiln of the embodiment includes a furnace body 1, three kiln ways 12 are arranged in a hearth 11 of the furnace body 1, two rows of guide rails 3 for transporting saggers 2 are arranged in each kiln way 12, and two adjacent kiln ways 12 are separated by a guide strip 4.

This six push pedal kiln's furnace body structural design three independent kiln ways 12, arrange two guide rails 3 in each kiln way 12 and carry saggar 2, realize six saggar 2 and impel simultaneously, realize the very big promotion of output, separate through gib block 4 between kiln way 12, guarantee that saggar 2 in each kiln way 12 carries mutual noninterference, independent transmission separately realizes the high stability of transmission.

In this embodiment, the furnace body 1 is provided with an upper heating element 51 and a lower heating element 52, the upper heating element 51 being located above the sagger 2, and the lower heating element 52 being located below each row of the guide rails 3. The furnace body 1 is provided with a thermocouple 7 for detecting the temperature in the hearth 11. Two thermocouples 7 are arranged and respectively correspond to the upper part and the lower part of the hearth 11, and the thermocouples 7 penetrate through the furnace body 1 and extend into the hearth 11. The upper heating element 51 and the lower heating element 52 are preferably resistance wires (or silicon carbon elements) and form a temperature control system together with the thermocouple 7, the thermocouple 7 detects the temperature in the hearth 11 and feeds the temperature back to the electronic control system, and the electronic control system adjusts the heating power of the upper heating element and the lower heating element, so that the temperature in the hearth 11 is controlled.

In this embodiment, a partition 61 is disposed above the hearth 11, a buffer area 13 is formed between the partition 61 and the top of the hearth 11, the upper heating element 51 is located in the buffer area 13, and the partition 61 is provided with a plurality of through holes 601. A square beam 62 for supporting the partition board 61 is arranged below the partition board 61, two ends of the square beam 62 are fixed on the inner wall of the hearth 11, the square beam 62 is preferably made of light silicon carbide, a top cover plate 63 is arranged at the top of the hearth 11, and a partition beam 64 is arranged between the top cover plate 63 and the partition board 61. The partition beams 64 are provided in plurality, three are taken as an example in the embodiment, wherein one partition beam 64 is positioned in the middle of the buffer zone 13 to divide the buffer zone 13 into two parts, and the other two partition beams 64 are provided on two side walls of the hearth 11, as shown in fig. 2, and an arrow a in fig. 2 indicates a conveying direction of the sagger 2.

Through the arrangement, a plurality of closed buffer zones 13 (heating chambers) are formed above the hearth 11, and the buffer zones 13 can effectively prevent the upper heating element 51 from directly falling into the hearth 11 after being broken due to corrosion or aging on one hand, and prevent the normal propulsion of products to cause the occurrence of kiln blockage accidents; on the other hand, the partition board 61 is used as a heat radiation board to radiate heat into the furnace 11 in a surface radiation manner, so that the uniformity of direct radiation of the upper heating element 51 is better, and the temperature uniformity in the furnace 11 is prevented from being affected by uneven heating caused by the resistance difference of the upper heating element 51. The heat of the buffer 13 flows into the lower part of the furnace 11 through the through holes 601, and the through holes 601 are uniformly distributed to improve uniformity.

In this embodiment, the upper heating element 51 and the lower heating element 52 are each externally sleeved with a protective sleeve 53. The protective sleeve 53 is preferably a quartz tube effective to prevent volatile corrosion from the sintering process from damaging the upper and lower heating elements. The upper heating element 51 and the lower heating element 52 are both penetrated on the furnace body 1, an insulating sealing plug 54 is arranged between the two ends of the upper heating element 51 and the furnace body 1, and an insulating sealing plug 54 is arranged between the two ends of the lower heating element 52 and the furnace body 1. The insulating sealing plug 54 is preferably an insulating ceramic plug to prevent the upper and lower heating elements from contacting the furnace body 1 to cause a short circuit.

In this embodiment, the bottom of furnace 11 is equipped with inlet channel 8, and inlet channel 8 divide into main inlet channel 81 and many branch inlet channel 82, and each branch inlet channel 82 interval arrangement just all communicates with furnace 11. In this embodiment, the number of the branch air inlet channels 82 is 6, and the branch air inlet channels correspond to six rows of saggars 2. The top of the furnace 11 is provided with two exhaust channels 9. The top cover plate 63 is provided with air holes for exhausting the gas in the furnace 11. Through the design of multi-path air inlet and exhaust, the uniform flow of gas in the furnace can be fully ensured, the stability of the pressure in the furnace is maintained, and the uniformity of a flow field and a temperature field is improved

In this embodiment, the furnace body 1 includes a furnace casing 101 and a refractory 102 in the furnace casing 101, the main gas inlet passage 81 and the 6 branch gas inlet passages 82 are laid in the refractory 102, and the gas outlet passage 9 is communicated with the furnace chamber 11 through the refractory 102.

In this embodiment, the guide rail 3 is preferably a roller conveyor.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a furnace body structure of six push pedal kilns which characterized in that: the kiln comprises a furnace body (1), wherein three kiln ways (12) are arranged in a hearth (11) of the furnace body (1), two guide rails (3) used for transporting saggars (2) are arranged in each kiln way (12), and two adjacent kiln ways (12) are separated by guide strips (4).

2. The furnace body structure of a six-pusher kiln according to claim 1, characterized in that: the furnace body (1) is provided with an upper heating element (51) and a lower heating element (52), the upper heating element (51) is positioned above the saggar (2), and the lower heating element (52) is positioned below each row of guide rails (3).

3. The furnace body structure of a six-pusher kiln according to claim 2, characterized in that: a partition board (61) is arranged above the hearth (11), a buffer area (13) is formed between the partition board (61) and the top of the hearth (11), the upper heating element (51) is located in the buffer area (13), and the partition board (61) is provided with a plurality of through holes (601).

4. The furnace body structure of a six-pusher kiln according to claim 3, characterized in that: the square beam (62) supporting the partition plate (61) is arranged below the partition plate (61), a top cover plate (63) is arranged at the top of the hearth (11), and a separation beam (64) is arranged between the top cover plate (63) and the partition plate (61).

5. The furnace body structure of a six-pusher kiln according to any one of claims 2 to 4, characterized in that: and protective sleeves (53) are sleeved outside the upper heating element (51) and the lower heating element (52).

6. The furnace body structure of a six-pusher kiln according to any one of claims 2 to 4, characterized in that: the furnace body (1) is provided with an upper heating element (51) and a lower heating element (52), the upper heating element (51) and the lower heating element (52) penetrate through the furnace body (1), an insulating sealing plug (54) is arranged between the two ends of the upper heating element (51) and the furnace body (1), and an insulating sealing plug (54) is arranged between the two ends of the lower heating element (52) and the furnace body (1).

7. The furnace body structure of a six-pusher kiln according to any one of claims 2 to 4, characterized in that: the furnace body (1) is provided with a thermocouple (7) for detecting the temperature in the hearth (11).

8. The furnace body structure of a six-pusher kiln according to any one of claims 1 to 4, characterized in that: the bottom of furnace (11) is equipped with inlet channel (8), inlet channel (8) divide into main inlet channel (81) and many branch inlet channel (82), and each divides inlet channel (82) interval arrangement and all communicates with furnace (11).

9. The furnace body structure of a six-pusher kiln according to claim 8, characterized in that: the top of the hearth (11) is provided with at least one exhaust channel (9).

10. The furnace body structure of a six pusher kiln according to claim 9, characterized in that: the furnace body (1) comprises a furnace shell (101) and a refractory material (102) positioned in the furnace shell (101), the main air inlet channel (81) and the plurality of branch air inlet channels (82) are laid in the refractory material (102), and the exhaust channel (9) penetrates through the refractory material (102) and is communicated with the hearth (11).