CN214619578U - Counter-flow rotary kiln - Google Patents

Abstract

The utility model discloses a counter-current rotary kiln, which comprises a kiln body, a kiln head cover, a feeding pipeline, a kiln tail cover and a cooling water jacket, wherein the kiln body is provided with a feeding end part and a discharging end part, the feeding end part is provided with a feeding hole, and the discharging end part is provided with a first discharging hole; the kiln head is sleeved on the feeding end part; the discharge end part of the feed pipeline extends into the kiln head cover, the discharge end part of the feed pipeline is provided with a second discharge hole, and the second discharge hole at the discharge end part is matched with the feed hole; the kiln tail cover is sleeved on the discharge end part and is provided with a slag hole, and the slag hole is communicated with the first discharge hole of the kiln body; the cooling water jacket is sleeved on the feeding end part; the utility model discloses can effectively reduce the temperature of the feed end of the kiln body, prevent that the material from gluing stifled feed inlet because of high temperature melting for the material can be added to the rotary kiln against the current smoothly, has improved the production efficiency of rotary kiln against the current.

Description

Counter-flow rotary kiln

Technical Field

The utility model relates to a refuse treatment device, concretely relates to rotary kiln against current.

Background

In recent years, with the increasing environmental protection requirements and the acceleration of the urbanization construction pace, the solid wastes generated in industry, agriculture and daily life are increasing year by year, and the treatment of the solid wastes attracts people's attention.

In the related technology, solid waste is mostly treated through a countercurrent rotary kiln, the solid waste enters a kiln body through a feeding hole and is discharged from a slag hole after being fully combusted and reflected in the kiln body, but the conventional countercurrent rotary kiln has short service life and is easy to block a feeding hole, so that the solid waste cannot be smoothly added into the countercurrent rotary kiln.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a counter-current rotary kiln.

According to the utility model discloses rotary kiln against current, include: the kiln body is provided with a feeding end part and a discharging end part, the feeding end part is provided with a feeding hole, and the discharging end part is provided with a first discharging hole; the kiln head cover is sleeved on the feeding end part; the discharge end part of the feed pipeline extends into the kiln head cover, the discharge end part of the feed pipeline is provided with a second discharge hole, and the second discharge hole at the discharge end part is matched with the feed hole; the kiln tail cover is sleeved on the discharge end part and is provided with a slag hole, and the slag hole is communicated with the first discharge hole of the kiln body; and the cooling water jacket is sleeved on the feeding end part and comprises a water jacket body, a water outlet pipe and a water inlet pipe, the water jacket body is provided with a cooling cavity, the cooling cavity is provided with a water inlet and a water outlet, the water outlet pipe is connected with the water outlet, and the water inlet pipe is connected with the water inlet.

According to the utility model discloses a rotary kiln against current has long service life, advantage that production efficiency is high.

Further, the cooling water jacket is positioned in the kiln head cover or between the kiln head cover and the feeding end part.

Further, the shape of the cooling water jacket is matched with that of the feeding end part, and the distance between the inner circumferential surface of the cooling water jacket and the outer circumferential surface of the feeding end part in the radial direction of the kiln body is smaller than a preset value.

Further, the water jacket body comprises an inner ring, an outer ring, a first side sealing plate and a second side sealing plate, the first side sealing plate is connected with a first side surface of each of the inner ring and the outer ring, the second side sealing plate is connected with a second side surface of each of the inner ring and the outer ring, and the cooling cavity is defined among the inner ring, the outer ring, the first side sealing plate and the second side sealing plate.

Further, the cooling water jacket further comprises a plurality of partition plates, the partition plates are arranged in the cooling cavity at intervals along the circumferential direction of the water jacket body, the partition plates divide the cooling cavity into a plurality of cooling chambers, each cooling chamber is located between two adjacent partition plates, each cooling chamber is provided with the water inlet and the water outlet, each of the water outlet pipes and the water inlet pipes is multiple, the water outlet pipes are connected with the water outlets of the cooling chambers in a one-to-one correspondence manner, and the water inlet pipes are connected with the water inlets of the cooling chambers in a one-to-one correspondence manner.

Further, a plurality of the partition plates are provided in the cooling chamber at equal intervals in the circumferential direction of the water jacket body, the water inlet of each of the cooling chambers is adjacent to one of the respective two partition plates, and the water outlet of each of the cooling chambers is adjacent to the other of the respective two partition plates.

Further, the kiln body is obliquely arranged, and the feeding end part of the kiln body is positioned above the discharging end part of the kiln body.

Furthermore, the installation cavity is defined between the kiln head cover and the feeding end part of the kiln body, the cooling water jacket is installed in the installation cavity, and the water outlet and the water inlet are formed in the side face of the second side sealing plate.

Further, the water inlet pipe comprises a first horizontal part and a first vertical part, the lower end part of the first vertical part is connected with the first end part of the first horizontal part, and the second end part of the first horizontal part penetrates through the water inlet and extends into the cooling cavity;

further, the water outlet pipe comprises a second horizontal part and a second vertical part, the lower end part of the second vertical part is connected with the first end part of the second horizontal part, and the second end part of the second horizontal part penetrates through the water outlet and extends into the cooling cavity.

Furthermore, a support frame is arranged in the kiln head cover, one part of the discharging end part of the feeding pipeline is supported on the support frame, and one part of the feeding end of the feeding pipeline extends into the feeding port of the kiln body.

Drawings

FIG. 1 is a schematic view of the structure of a counter-current rotary kiln incinerator.

Fig. 2 is a schematic structural view of the second combustion chamber.

FIG. 3 is a schematic view of the structure of a counter-current rotary kiln.

Fig. 4 is a schematic structural view of a kiln head cover.

Fig. 5 is a schematic structural view of the cooling water jacket.

Fig. 6 is a front sectional view of the cooling water jacket.

Fig. 7 is a front view of the support and base.

Fig. 8 is a side view of the support and base.

A counter-current rotary kiln incinerator 10; a rotary kiln 100;

a kiln head cover 1; a feed conduit 11; a mounting cavity 12; a support frame 13; a discharge end 111;

a kiln body 2; a feed port 21; a first discharge port 22; a feed end 23; a discharge end 24;

a cooling water jacket 3; a water jacket body 30; a water outlet pipe 31; a second horizontal portion 311; a second vertical portion 312; a water inlet pipe 32; the first horizontal portion 321; first upright portion 322; an inner race 34; an outer ring 35; a first side closure plate 36; a second side closure plate 37; a cooling chamber 38; a partition plate 39; a cooling chamber 40;

a kiln tail cover 4; a slag outlet 41;

a second combustion chamber 5; a combustion chamber 51; a viewing port 52; an air inlet 53; a smoke inlet 54; a first end portion 55; a second end portion 56; a base 571; a support 572; the rolling members 573; a rolling groove 574; a bottom wall face 5741; a clamp 575; a card slot 576; a first snap 577; a second protrusion 578; a support plate 579; an emergency stack 58; a burner 60, an ash removal port 61; a second flue gas outlet 62;

a flue 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 8, a reverse flow rotary kiln incinerator 10 according to an embodiment of the present invention includes a reverse flow rotary kiln 100, a flue 6, and a secondary combustion chamber 5, and the reverse flow rotary kiln 100 includes a kiln body 2, a kiln head cover 1, a feed pipe 11, a kiln tail cover 4, and a cooling water jacket 3. The kiln body 2 has a feed end portion 23 and a discharge end portion 24, the feed end portion 23 having a feed opening 21, and the discharge end portion 24 having a first discharge opening 22. Kiln hood 1 overlaps on feed end portion 23, and kiln hood 1 has first exhanst gas outlet, and the ejection of compact tip 111 of charge-in pipeline 11 stretches into kiln hood 1 in, and the ejection of compact tip 111 of charge-in pipeline 11 has the second discharge gate, and the second discharge gate and the feed inlet 21 cooperation of ejection of compact tip 111 to the material enters into kiln body 2 through second discharge gate and feed inlet 21.

The kiln tail cover 4 is sleeved on the discharge end part 24, the discharge end part 24 is provided with a slag hole 41, and the slag hole 41 is communicated with the first discharge hole 22 of the kiln body 2. The cooling water jacket 3 is sleeved on the feeding end portion 23, the cooling water jacket 3 comprises a water jacket body 30, a water outlet pipe 31 and a water inlet pipe 32, the water jacket body 30 is provided with a cooling cavity 38, the cooling cavity 38 is provided with a water inlet and a water outlet, the water outlet pipe 31 is connected with the water outlet, and the water inlet pipe 32 is connected with the water inlet. The second combustion chamber 5 is provided with a combustion chamber 51, and the combustion chamber 51 is communicated with the first smoke outlet of the kiln head cover 1 through a flue 6.

According to the utility model discloses rotary kiln 100 sets up cooling jacket 3 through the cover on the feed end 23 of the kiln body 2 against the current to can utilize cooling jacket 3 to cool down the feed end 23 of the kiln body 2, so that reduce the temperature of the feed end 23 of the kiln body 2. Therefore, heat can be prevented from being collected at the feeding end part 23, and further heat collected at the feeding end part 23 is prevented from being conducted and radiated to the kiln body 2, so that the temperature of the kiln body 2 is effectively reduced, the service life of the countercurrent rotary kiln 100 is prolonged, and the material can be prevented from being stuck and blocked at the feeding hole 21 due to high-temperature melting, so that the feeding hole 21 is prevented from being blocked, the material can be smoothly added into the countercurrent rotary kiln 100 from the feeding hole 21, and the production efficiency of the countercurrent rotary kiln 100 is improved.

Therefore, the countercurrent rotary kiln 100 according to the embodiment of the present invention has the advantages of long service life, high production efficiency, etc.

According to the utility model discloses reverse flow rotary kiln burns burning furnace 10 through setting up second combustion chamber 5 with the first exhanst gas outlet intercommunication of kiln hood 1 for the flue gas that produces behind the incineration disposal loops through kiln hood 1, 6 entering second combustion chamber 5 of flue in the kiln body 2, and the flue gas carries out the secondary high temperature burning more than 1000 ℃ in second combustion chamber 5. Additionally, according to the utility model discloses burn burning furnace with rotary kiln against current sets up second exhanst gas outlet 62, sets up slag notch 41 on kiln hood 4 through setting up 1 to can make the flow direction of flue gas opposite with the flow direction of the interior material of the kiln body 2, make the material remove the in-process in the kiln body 2, the flue gas can fully preheat the material, thereby makes the material burning more abundant.

In order to make the technical solution of the present application easier to understand, the following further describes the technical solution of the present application taking the second combustion chamber 5 extending in the left-right direction as an example. The left-right direction is shown by arrow a in fig. 1.

As shown in fig. 2, the second combustion chamber 5 has a first end 55 (e.g., a left end) and a second end 56 (e.g., a right end), the first end 55 is provided with a burner 60, an observation port 52 and an air inlet 53, the burner 60 provides a fire source for the flue gas in the second combustion chamber 5, so that the flue gas can be sufficiently combusted, the combustion-supporting gas can be fed into the second combustion chamber 5 through the air inlet 53, and the combustion condition in the second combustion chamber 5 can be observed through the observation port 52. The side surface of the second combustion chamber 5 is provided with a smoke inlet 54, the smoke inlet 54 is adjacent to the first end part 55, the flue 6 is communicated with the combustion cavity 51 of the second combustion chamber 5 through the smoke inlet 54, and the second end part 56 is provided with a second smoke outlet 62. The left end combustor 60 of second combustion chamber 5 promptly, the right-hand member of second combustion chamber 5 is equipped with second exhanst gas outlet 62, and the flue gas after the burning can be followed second exhanst gas outlet 62 and discharged second combustion chamber 5, and second combustion chamber 5 side is equipped with into mouth 54, and advances the left end that mouth 54 is close to second combustion chamber 5, not only can make combustor 60 can ignite the flue gas, has also increased the burning time of flue gas at second combustion chamber 5 for the flue gas burning is more abundant.

As shown in fig. 2, an emergency chimney 58 is arranged above the secondary combustion chamber 5, an ash cleaning port 61 is arranged below the secondary combustion chamber 5, and an electric high-temperature butterfly valve is arranged on the emergency chimney 58. When the reverse flow rotary kiln incinerator 10 cannot normally operate, the electric high-temperature butterfly valve is automatically opened after the reverse flow rotary kiln incinerator 10 stops working, and combustion gas can be discharged from the emergency chimney 58 of the secondary combustion chamber 5.

As shown in fig. 3, the kiln body 2 is arranged obliquely, the feed end 23 of the kiln body 2 being located above the discharge end 24 of the kiln body 2. I.e. the feed end 23 is higher than the discharge end 24. Therefore, the materials can be smoothly discharged from the first discharge hole 22 after entering from the feed hole 21 of the kiln body 2 and being incinerated in the kiln body 2.

As shown in fig. 4, a support frame 13 is arranged in the kiln head cover 1, a part of the feed pipe 11 is supported on the support frame 13, and the feed pipe 11 extends into the feed port 21 of the kiln body 2. I.e. the feed conduit 11 is mounted on a support frame 13, so that the feed conduit 11 is mounted in the kiln head casing 1. One end of the feed pipe 11 extends into the feed port 21 of the kiln body 2 so that the material can be completely fed into the kiln body 2 through the feed pipe 11.

As shown in fig. 3 to 6, the cooling water jacket 3 is located in the kiln head cover 1 or the cooling water jacket 3 is located between the kiln head cover 1 and the feeding end portion 23. Thereby making the structure of the counter-flow rotary kiln 100 more reasonable.

Optionally, the shape of the cooling water jacket 3 is matched with the shape of the feeding end part 23, and the distance between the inner circumferential surface of the cooling water jacket 3 and the outer circumferential surface of the feeding end part 23 in the radial direction of the kiln body 2 is smaller than a preset value. Thereby, the feed end portion 23 of the kiln body 2 can be made to have the same shape as the cooling water jacket 3, so as to further improve the cooling efficiency of the cooling water jacket 3. Moreover, the inner circumferential surface of the cooling water jacket 3 is not contacted with the outer circumferential surface of the feeding end part 23, and a certain gap is formed between the inner circumferential surface and the outer circumferential surface, so that the cooling water jacket 3 and the feeding end part 23 of the kiln body 2 are prevented from being rubbed, and the service lives of the cooling water jacket 3 and the kiln body 2 are prolonged.

Alternatively, the preset value is 2cm to 3cm, so that the cooling water jacket 3 does not affect the rotation of the kiln body 2 and the cooling efficiency of the cooling water jacket 3 on the feeding end portion 23 of the kiln body 2 is not reduced.

As shown in fig. 5 to 6, the water jacket body 30 includes an inner ring 34, an outer ring 35, a first side seal plate 36, and a second side seal plate 37, each of the first side seal plate 36 and the second side seal plate 37 being annular. The inner peripheral surface of the first side seal plate 36 is connected to the outer peripheral surface of the inner ring 34, the outer peripheral surface of the first side seal plate 36 is connected to the inner peripheral surface of the outer ring 35, the inner peripheral surface of the second side seal plate 37 is connected to the outer peripheral surface of the inner ring 34, and the outer peripheral surface of the first side seal plate 36 is connected to the inner peripheral surface of the outer ring 35. Cooling cavity 38 is defined between inner race 34, outer race 35, first side seal plate 36 and second side seal plate 37. The structure of the water jacket body 30 can thereby be made more rational.

As shown in fig. 5, the cooling water jacket 3 further includes a plurality of partition plates 39, the plurality of partition plates 39 are provided in the cooling cavity 38 at intervals in the circumferential direction of the water jacket body 30, the plurality of partition plates 39 partition the cooling cavity 38 into a plurality of cooling chambers 40, each cooling chamber 40 is located between two adjacent partition plates 39, and each cooling chamber 40 has a water inlet and a water outlet. Each of the water outlet pipes 31 and the water inlet pipes 32 is plural, the plural water outlet pipes 31 are connected to the water outlets of the plural cooling chambers 40 in a one-to-one correspondence, and the plural water inlet pipes 32 are connected to the water inlets of the plural cooling chambers 40 in a one-to-one correspondence.

By dividing the cooling chamber 38 into a plurality of cooling chambers 40 by a plurality of partition plates 39, not only the flow time of the cooling water in the cooling chambers 40 is reduced, but also the cooling area of the cooling water in the cooling chambers 40 is reduced, thereby improving the cooling efficiency of the cooling water jacket 3. And 40 is defined between two adjacent partition plates 39, the inner ring 34 and the outer ring 35, each cooling chamber 40 is provided with a water outlet and a water inlet, each water inlet is connected with a water inlet pipe 32, each water outlet is connected with a water outlet pipe 31, cooling water enters the cooling chamber 40 through the water inlet pipe 32, the cooling water in the cooling chamber 40 exchanges heat with the feeding end part 23 and flows out through the water outlet pipe 31, and therefore the heat of the feeding end part 23 is taken away.

As shown in fig. 5, a plurality of partition plates 39 are provided in the cooling chamber 38 at equal intervals in the circumferential direction of the water jacket body 30, the inlet of each cooling chamber 40 being adjacent to a corresponding one of the two partition plates 39, and the outlet of each cooling chamber 40 being adjacent to the other of the two partition plates 39. Wherein the respective two partition plates 39 refer to the two partition plates 39 defining the cooling chamber 40.

The water inlet in each cooling chamber 40 is adjacent to one partition plate 39 defining the cooling chamber 40, and the water outlet in each cooling chamber 40 is adjacent to the other partition plate 39 defining the cooling chamber 40, so that the cooling water can flow in almost the entire cooling chamber 40, thereby further improving the cooling effect of the cooling water jacket 3.

As shown in fig. 4, a mounting cavity 12 is defined between the kiln head cover 1 and the feeding end 23 of the kiln body 2, and the cooling water jacket 3 is mounted in the mounting cavity 12, wherein the water outlet and the water inlet are arranged on the side surface of the second side sealing plate 37. Namely, the cooling water jacket 3 is installed between the kiln head cover 1 and the feeding end part 23 of the kiln body 2 through the installation cavity 12, and the water outlet and the water inlet are arranged on the side surface of the second side sealing plate 37, so that the water inlet pipe 32 and the water outlet pipe 31 can be conveniently installed.

The inlet pipe 32 comprises a first horizontal portion 321 and a first vertical portion 322, i.e. the first horizontal portion 321 may be a horizontal section of the inlet pipe 32 and the first vertical portion 322 may be a vertical section of the inlet pipe 32. An upper end portion of the first vertical portion 322 is connected to a first end portion (e.g., a right end portion) of the first horizontal portion 321, and a second end portion (e.g., a left end portion) of the first horizontal portion 321 passes through the water inlet and protrudes into the cooling chamber 38.

Outlet pipe 31 includes a second horizontal portion 311 and a second vertical portion 312, i.e. second horizontal portion 311 may be a horizontal section of outlet pipe 31 and second vertical portion 312 may be a vertical section of outlet pipe 31. A lower end portion of the second vertical portion 312 is connected to a first end portion (e.g., a right end portion) of the second horizontal portion 311, and a second end portion (e.g., a left end portion) of the second horizontal portion 311 passes through the water outlet and protrudes into the cooling chamber 38. That is, the water inlet pipe 32 includes a first horizontal portion 321 and a first vertical portion 322, a first end portion of the first horizontal portion 321 communicates with an upper end of the first vertical portion 322, and a second end portion of the first horizontal portion 321 protrudes into the cooling chamber 38 through the water inlet. Whereby the installation of the external water supply pipe on the first upright portion 322 can be facilitated.

The outlet pipe 31 includes a second horizontal portion 311 and a second vertical portion 312, a first end portion of the second horizontal portion 311 communicates with a lower end portion of the second vertical portion 312, and a left end portion of the second horizontal portion 311 extends into the cooling chamber 38 through the water outlet, thereby facilitating the installation of an external water return pipe on the second vertical portion 312.

As shown in fig. 7 to 8, the reverse flow rotary kiln incinerator 10 further includes a base 571, a support member 572, and a rolling member 573, the support member 572 being fitted over the second firebox 5, the rolling member 573 being rollably provided between the base 571 and the support member 572, the rolling member 573 being in contact with each of the base 571 and the support member 572. In other words, the second combustion chamber 5 is placed on the supporting member 572 so that the supporting member 572 supports the second combustion chamber 5, and the rolling member 573 is provided between the base 571 and the supporting member 572. When the second combustion chamber 5 thermally expands and contracts in the longitudinal direction thereof (the axial direction of the second combustion chamber 5), the support member 572 moves in the longitudinal direction of the second combustion chamber 5 by the rolling member 573 following the thermal expansion and contraction of the second combustion chamber 5. Accordingly, the rolling member 573 is provided between the base 571 and the support member 572, thereby preventing the support member 572 from being damaged by thermal expansion and contraction of the second combustion chamber 5.

The base 571 is provided with a rolling groove 574, and the rolling member 573 is rollably provided in the rolling groove 574. So that the roller 573 can roll within the rolling groove 574. Therefore, the rolling member 573 can be restrained and limited by the rolling groove 574, and the structure of the reverse flow rotary kiln incinerator 10 can be more stable.

Wherein, the length direction of the second combustion chamber 5 can be the left-right direction. As shown in fig. 1, the first horizontal direction is perpendicular to the longitudinal direction of second combustion chamber 5, and a plurality of rolling members 573 are provided, the plurality of rolling members 573 being spaced apart along the first horizontal direction. By providing the plurality of rolling members 573, the supporting member 572 can be made to slide more stably. Wherein the first horizontal direction is indicated by arrow C in fig. 1.

As shown in fig. 7, the roller 573 is provided with a catch 576 on the circumferential surface thereof, and the catch 576 extends along the entire circumferential direction of the roller 573, i.e., the catch 576 has an annular shape, and the circumferential direction of the catch 576 coincides with the circumferential direction of the roller 573. The bottom wall face 5741 of the rolling groove 574 is provided with a first blocking protrusion 577, the supporting piece 572 is provided with a second blocking protrusion 578, and the first blocking protrusion 577 and the second blocking protrusion 578 are arranged in the clamping groove 576 in a matched mode. By providing the first and second catching projections 577 and 578 fitted in the catching groove 576, it is possible to prevent the roller 573 from axially floating or to restrict the roller 573 from axially floating, thereby allowing the supporting piece 572 to more stably slide.

Optionally, the lower surface of the supporting member 572 is provided with a second protrusion 578. The first protrusion 577 is located below the bottom wall surface of the slot 576, and the second protrusion 578 is located above the bottom wall surface of the slot 576. That is, the portion of the roller 573 provided with the catching groove 576 is located between the first catching protrusion 577 and the second catching protrusion 578 in the up-down direction. The vertical direction is shown by arrow B in fig. 8.

The rolling groove 574 has first and second end portions opposite in the first horizontal direction, each of which is open, so that the rolling member 573 is more easily and conveniently mounted in the rolling groove 574.

As shown in fig. 7 to 8, the supporting member 572 is plural, and the plural supporting members 572 are provided at intervals in the longitudinal direction of the second combustion chamber 5. The provision of the plurality of supporting pieces 572 not only more stably supports the second combustion chamber 5 but also prevents the second combustion chamber 5 from excessively crushing the supporting pieces 572 or crushing the rolling pieces 573.

The support member 572 includes a support plate 579 on which the secondary combustion chamber 5 is supported, and a clamp 575 detachably mounted on the support plate 579. Whereby the supporting member 572 and the second combustion chamber 5 can be assembled more easily and more easily. For example, the support plate 579 and the clamp 575 are connected by bolts.

The countercurrent rotary kiln 100 according to the embodiment of the present invention, which includes a kiln body 2, a kiln head cover 1, a feed pipe 11, a kiln tail cover 4 and a cooling water jacket 3, will be described with reference to fig. 1 to 8.

The kiln body 2 has feed end portion 23 and ejection of compact tip 24 at both ends, feed end portion 23 has feed inlet 21, ejection of compact tip 24 has first discharge gate 22, kiln hood 1 and cooling water jacket 3 all overlap on feed end portion 23, cooling water jacket 3 includes water jacket body 30, outlet pipe 31 and inlet tube 32, water jacket body 30 has cooling chamber 38, cooling chamber 38 has water inlet and delivery port, outlet pipe 31 links to each other with the delivery port, inlet tube 32 links to each other with the water inlet to outside cooling water gets into cooling chamber 38 from inlet tube 32 in, flows out cooling chamber 38 from outlet pipe 31 after carrying out the heat exchange. The feeding pipeline 11 is installed in the kiln head cover 1, and one end of the feeding pipeline 11 extends into the feeding hole 21 of the kiln body 2, so that the materials are fed into the kiln body 2 through the feeding pipeline 11. The kiln tail cover 4 is sleeved on the discharge end part 24 and is provided with a slag hole 41, and the slag hole 41 is communicated with the first discharge hole 22 of the kiln body 2.

The cooling water jacket 3 is installed on the kiln head cover 1 and sleeved on the feeding end part 23, the shape of the cooling water jacket 3 is matched with that of the feeding end part 23, and the inner circumferential surface of the cooling water jacket 3 is not in contact with the outer circumferential surface of the feeding end part 23. The cooling water jacket 3 further includes an inner ring 34, an outer ring 35, a first side seal plate 36, a second side seal plate 37, and a plurality of partition plates 39, the plurality of partition plates 39 are provided in the cooling cavity 38 at equal intervals in the circumferential direction of the water jacket body 30, and a cooling chamber 40 is defined between the inner ring 34, the outer ring 35, the first side seal plate 36, the second side seal plate 37, and the partition plates 39. Each cooling chamber 40 is located between two adjacent cooling chambers, each cooling chamber 40 having a water inlet and a water outlet, the water inlet of each cooling chamber 40 being adjacent to a respective one of the two partition plates 39 and the water outlet of each cooling chamber 40 being adjacent to the other of the respective two partition plates 39. And each water outlet is connected with a water outlet pipe 31, and each water inlet is connected with a water inlet pipe 32.

The water inlet pipe 32 includes a first horizontal portion 321 and a first vertical portion 322, a lower end portion of the first vertical portion 322 is connected to a first end portion of the first horizontal portion 321, and a second end portion of the first horizontal portion 321 passes through the water inlet port and protrudes into the cooling chamber 38. The outlet pipe 31 includes a second horizontal portion 311 and a second vertical portion 312, a lower end portion of the second vertical portion 312 is connected to a first end portion of the second horizontal portion 311, and a second end portion of the second horizontal portion 311 passes through the water outlet and extends into the cooling chamber 38. So as to install the inlet pipe 32 and the outlet pipe 31.

The kiln body 2 is obliquely arranged so that the feed port 21 is higher than the first discharge port 22, so that the material can smoothly enter the feed port 21 and be discharged from the first discharge port 22 after being incinerated in the kiln body 2. A support frame 13 is arranged in the kiln head cover 1, a part of the feeding pipeline 11 is supported on the support frame 13, and the feeding pipeline 11 extends into a feeding hole 21 of the kiln body 2.

Therefore, according to the utility model discloses reverse flow rotary kiln 100 has that the cooling effect is good, long service life, advantages such as reinforced smoothness.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean 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 present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A counter-current rotary kiln, comprising: the kiln body is provided with a feeding end part and a discharging end part, the feeding end part is provided with a feeding hole, and the discharging end part is provided with a first discharging hole; the kiln head cover is sleeved on the feeding end part; the discharge end part of the feed pipeline extends into the kiln head cover, the discharge end part of the feed pipeline is provided with a second discharge hole, and the second discharge hole at the discharge end part is matched with the feed hole; the kiln tail cover is sleeved on the discharge end part and is provided with a slag hole, and the slag hole is communicated with the first discharge hole of the kiln body; and the cooling water jacket is sleeved on the feeding end part and comprises a water jacket body, a water outlet pipe and a water inlet pipe, the water jacket body is provided with a cooling cavity, the cooling cavity is provided with a water inlet and a water outlet, the water outlet pipe is connected with the water outlet, and the water inlet pipe is connected with the water inlet.

2. The countercurrent rotary kiln of claim 1, wherein the cooling water jacket is located within the kiln head hood or between the kiln head hood and the feed end.

3. The countercurrent rotary kiln as defined in claim 1, wherein the shape of the cooling water jacket is adapted to the shape of the feeding end portion, and the distance between the inner circumferential surface of the cooling water jacket and the outer circumferential surface of the feeding end portion in the radial direction of the kiln body is smaller than a preset value.

4. The reverse flow rotary kiln of claim 1, wherein the water jacket body includes an inner ring, an outer ring, a first side seal plate and a second side seal plate, the first side seal plate being connected to a first side of each of the inner and outer rings, the second side seal plate being connected to a second side of each of the inner and outer rings, the inner ring, the outer ring, the first side seal plate and the second side seal plate defining the cooling cavity therebetween.

5. The countercurrent rotary kiln according to claim 1, wherein the cooling jacket further comprises a plurality of partition plates, the plurality of partition plates are arranged in the cooling cavity at intervals along the circumferential direction of the jacket body, the plurality of partition plates divide the cooling cavity into a plurality of cooling chambers, each cooling chamber is located between two adjacent partition plates, each cooling chamber is provided with the water inlet and the water outlet, each of the water outlet pipes and the water inlet pipes is provided with a plurality of water outlet pipes, the plurality of water outlet pipes are connected with the water outlets of the plurality of cooling chambers in a one-to-one correspondence manner, and the plurality of water inlet pipes are connected with the water inlets of the plurality of cooling chambers in a one-to-one correspondence manner.

6. The countercurrent rotary kiln according to claim 5, wherein a plurality of said partition plates are provided in said cooling chamber at equal intervals in the circumferential direction of the water jacket body, said water inlet of each of said cooling chambers being adjacent to a respective one of two of said partition plates, and said water outlet of each of said cooling chambers being adjacent to the other of the respective two of said partition plates.

7. The countercurrent rotary kiln of claim 1, wherein the kiln body is disposed obliquely with the feed end of the kiln body above the discharge end of the kiln body.

8. The countercurrent rotary kiln as defined in claim 4, wherein a mounting cavity is defined between said kiln head cover and said feed end of said kiln body, said cooling water jacket is mounted in said mounting cavity, and wherein said water outlet and said water inlet are provided on the side of said second side sealing plate.

9. The countercurrent rotary kiln according to any one of claims 1 to 7, characterized in that the water inlet pipe comprises a first horizontal portion and a first vertical portion, the lower end of the first vertical portion being connected to a first end of the first horizontal portion, the second end of the first horizontal portion passing through the water inlet and protruding into the cooling chamber;

the water outlet pipe comprises a second horizontal part and a second vertical part, the lower end part of the second vertical part is connected with the first end part of the second horizontal part, and the second end part of the second horizontal part penetrates through the water outlet and extends into the cooling cavity.

10. The countercurrent rotary kiln as defined in claim 1 wherein a support frame is provided in the kiln head hood, a portion of the discharge end of the feed conduit is supported on the support frame, and a portion of the feed end of the feed conduit extends into the feed port of the kiln body.

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