Integrated roasting cooling kiln

Abstract

The utility model discloses an integrated roasting cooling kiln which comprises a rotary cylinder, the front section of the rotary cylinder serves as a drying roasting section, a shell is arranged outside the drying roasting section, the rear section of the rotary cylinder serves as a cooling section, and a water tank is arranged at the bottom outside the cooling section. A material guide device is arranged in the rotary cylinder body, the front end of the rotary cylinder body is a feed port, and the rear end of the rotary cylinder body is a discharge port; the rotary cylinder is adopted, and the roasting kiln and the cooling kiln are arranged into an integrated structure, so that the power consumption is reduced, the structure is compact, the occupied area is small, less equipment is used, the processing and manufacturing cost is saved, and the maintenance workload is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of material roasting and cooling devices, and in particular relates to an integrated roasting and cooling kiln. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The existing mode of combining a roasting kiln and a cooling kiln is used to realize the drying, calcining and cooling of materials, but the single equipment has a single function. For example, Chinese utility model patent CN204705175U discloses a belt calcining furnace, including a drying box, a calcining box and a cooling box connected in sequence to realize the functions of drying, calcining and cooling. However, this belt calcining furnace has the following problems in realizing a complete drying, calcining and cooling function: more equipment is required, which increases the cost; the process flow is complicated, the control points increase, and the power consumption increases; multiple equipment are used to realize the two working sections of drying, calcining and cooling, the complexity of the system layout increases, the conveying equipment is increased, the dust collection pipeline is increased, the system leakage points increase, the instrument control increases, and the failure points increase.

[0004] The fluidized bed drying and cooling integrated machine disclosed in the prior art can dry and cool wet materials well and reach the required discharge temperature. However, because the fluidized bed requires a blower and an induced draft fan to provide power, it has a smaller processing capacity than the rotary dryer, consumes more electricity, and has a narrow material adaptability range, and is only suitable for materials with no or less viscosity. Utility Model Content

[0005] The utility model aims to provide an integrated roasting and cooling kiln, which integrates a rotary drum roasting kiln and a cooling kiln into one, reduces power consumption, has a compact structure and occupies less area.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] In the first aspect, an embodiment of the utility model provides an integrated roasting and cooling kiln, comprising a rotary cylinder, wherein the front section of the rotary cylinder serves as a drying and roasting section, a shell is arranged outside the drying and roasting section, the rear section of the rotary cylinder serves as a cooling section, and a water trough is arranged at the bottom outside the cooling section; a material guiding device is arranged in the rotary cylinder, the front end of the rotary cylinder is a feed port, and the rear end is a discharge port.

[0008] As a further technical solution, the feed port of the rotary cylinder is connected to the feed hood through a feed short circuit, and the feed hood is sealed by a feed hood seal, and a process air outlet is arranged on the feed hood.

[0009] As a further technical solution, the material guiding device comprises a material guiding plate, a scooping plate and a scooping hopper, and the material guiding plate and the scooping plate spirally are arranged on the inner wall surface of the rotary cylinder.

[0010] As a further technical solution, the discharge port of the rotary cylinder is connected to the discharge cover through a discharge short circuit, and the discharge cover is sealed by a discharge cover seal, and a process air inlet is arranged on the discharge cover.

[0011] As a further technical solution, a high-temperature smoke inlet and an explosion-proof hole are arranged on the shell.

[0012] As a further technical solution, a plurality of cooling spray pipes are arranged above the rotary cylinder of the cooling section, and the cooling spray pipes are arranged parallel to the rotary cylinder.

[0013] As a further technical solution, a drain outlet is provided at the bottom of the water tank.

[0014] As a further technical solution, a gear ring is provided at the middle position of the rotary cylinder, and the gear ring is engaged with a driving gear of a transmission device to drive the rotary cylinder to rotate.

[0015] As a further technical solution, a plurality of rolling rings are further provided on the outer ring of the rotary cylinder, and the rolling rings cooperate with the supporting wheel device to support the rotation of the rotary cylinder.

[0016] As a further technical solution, a wireless temperature measuring device and a vibration device are also provided at the front end of the rotary cylinder.

[0017] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0018] The integrated roasting and cooling kiln provided by the utility model adopts a rotary cylinder, and the roasting kiln and the cooling kiln are arranged as an integrated structure, which reduces power consumption, has a compact structure and occupies less space, uses less equipment, saves processing and manufacturing costs, and reduces maintenance workload.

[0019] The integrated roasting and cooling kiln provided by the utility model realizes the drying, roasting and cooling process of materials by means of a rotary cylinder. Compared with a fluidized bed drying and cooling integrated machine, the processing capacity is greatly increased, and no blower, induced draft fan or other devices are required to provide power.

[0020] The utility model provides an integrated roasting and cooling kiln, in which a material guiding device is arranged in a rotary cylinder, comprising components such as a material guiding plate, a shoveling plate and a shoveling hopper. The material entering the cylinder is loosened and scattered for many times through the combined action of the material guiding plate, the shoveling plate and the frying hopper and other internal components, thereby increasing the contact area and fully exchanging heat with the high-temperature drying air; the mixed flow field moves violently, the dehydration intensity is increased, and the drying efficiency is improved.

[0021] The utility model provides an integrated roasting and cooling kiln, wherein a water tank is arranged below the cooling section to collect spray water and protect the on-site environment; the water tank is connected to a return water network to be reused after being regenerated in a subsequent cooling water section, thereby reducing water use, saving energy and reducing emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a structural schematic diagram of the integrated roasting and cooling kiln of the utility model;

[0024] FIG2( a) is a side view of the feed cover of Embodiment 1;

[0025] FIG2( b) is a front view of the feed cover of Embodiment 1;

[0026] FIG3( a) is a side view of the feed short circuit and the discharge short circuit of Example 1;

[0027] FIG3( b ) is a front view of the feed short circuit and the discharge short circuit of Example 1;

[0028] FIG4( a) is a side view of the discharge cover of the first embodiment;

[0029] FIG. 4( b ) is a front view of the discharge cover of the first embodiment.

[0030] The schematic diagram is for illustrative purposes only;

[0031] Among them, 1-process air outlet, 2-feed hood, 3-feed hood seal, 4-feed short circuit, 5-wireless temperature measuring device, 6-guide plate, 7-roller, 8-vibrating device, 9-copying plate, 10-rotating cylinder, 11-explosion-proof hole, 12-gear ring, 13-cylinder connecting flange, 14-cooling spray pipe, 15-copying hopper, 16-discharge hood seal, 17-discharge short circuit, 18-process air inlet, 19-discharge hood, 20-supporting wheel device, 21-drain outlet, 22-transmission device, 23-wheel blocking device, 24, shell, 25, water tank. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] Example 1

[0034] In a typical implementation of the present invention, Figure 1 As shown, an integrated roasting and cooling kiln is provided, including a rotary cylinder 10, wherein the front section of the rotary cylinder serves as a drying and roasting section, a shell 24 is arranged outside the drying and roasting section, and the rear section of the rotary cylinder serves as a cooling section, a water trough 25 is arranged outside the cooling section; a material guiding device is arranged in the rotary cylinder, the front end of the rotary cylinder 10 is a material feed port, and the rear end is a material discharge port.

[0035] Specifically, the feed port of the rotary cylinder is connected to the feed cover 2 through the feed short circuit 4, and the feed cover 2 is sealed by the feed cover seal 3, as shown in Figures 2(a) and 2(b), and a process air outlet is provided on the feed cover 2. The discharge port of the rotary cylinder is connected to the discharge cover 19 through the discharge short circuit 17, and the discharge cover 19 is sealed by the discharge cover seal 16, as shown in Figures 4(a) and 4(b), and a process air inlet 18 is provided on the discharge cover 19. During the roasting process, the process air enters the interior of the cylinder from the process air inlet and counterflows with the material, so that the material and the process air are fully contacted, and then discharged from the process air outlet, thereby improving the roasting efficiency.

[0036] In this embodiment, the structures of the feed short circuit 4 and the discharge short circuit 17 are the same, as shown in FIG. 3( a ) and FIG. 3( b ) , which are existing structures.

[0037] Furthermore, the material guiding device includes a material guiding plate 6, a shoveling plate 9 and a shoveling hopper 15, and the material guiding plate 6 and the shoveling plate 9 are spirally arranged on the inner wall surface of the rotary cylinder. Specifically, the material guiding plate 6 is spirally arranged at the entrance of the roasting section by welding, and its function is to convey materials, the shoveling plate 9 is circumferentially welded on the inner wall of the cylinder, and shovels the materials when the cylinder rotates to play a scattering role, and the shoveling hopper 15 is welded on the inner wall of the end face of the cooling section of the cylinder, and carries the materials into the discharging short circuit as the cylinder rotates.

[0038] In this embodiment, a high-temperature flue gas inlet and an explosion-proof hole 11 are provided on the shell 24. The high-temperature flue gas generated by the combustion of natural gas enters the first shell through the high-temperature flue gas inlet to heat the burned cylinder. The explosion-proof hole 11 is provided to ensure the safety of the equipment.

[0039] In this embodiment, a plurality of cooling spray pipes are arranged above the rotary cylinder of the cooling section, and the cooling spray pipes are arranged in parallel with the rotary cylinder. A drain port 21 is arranged at the bottom of the water tank. Furthermore, a plurality of nozzles are arranged on the cooling spray pipe, and the main pipe is connected to the cooling spray pipe through the nozzle to form a spray water curtain to spray on the rotary cylinder to cool the outer wall of the cylinder, and then the water flows from the drain port 21 below the cooling section to the cooling water return network.

[0040] In this embodiment, the rotary cylinder can be an integral cylinder or a cylinder formed by two sections of the cylinder connected by a cylinder connecting flange 13. In order to realize the rotation of the rotary cylinder, a ring gear 12 is arranged in the middle position of the rotary cylinder. The ring gear 12 is engaged with the driving gear of the transmission device 22 and is driven by the driving motor to realize the rotation of the rotary cylinder.

[0041] In this embodiment, a plurality of rollers 7 are further arranged on the outer ring of the rotary cylinder 10, which are respectively arranged at the front, middle and rear of the rotary cylinder. The rollers 7 are respectively pressed on the tug devices below them, so that the rotary cylinder is driven by the transmission device to rotate. Specifically, tug devices 20 are arranged below the rollers at the front and rear of the cylinder, wherein a wheel blocking device 23 is arranged below the roller 7 in the middle of the cylinder, which plays a role in fixing the cylinder because the equipment has an inclined angle when running, preventing the cylinder from sliding forward and backward when rotating.

[0042] Furthermore, a wireless temperature measuring device 5 and a vibrating device 8 are also provided at the front end of the rotary cylinder. The wireless temperature measuring device 5 is used to measure the temperature in each temperature zone in the rotary cylinder, and the vibrating device is used to vibrate the cylinder to prevent wet materials from sticking to the wall.

[0043] In this embodiment, the structure of the rapping device 5 is that a rapping ball is placed inside a steel pipe and welded to the outer wall of the cylinder. When the cylinder rotates, the rapping ball hits the cylinder under the action of gravity to achieve a rapping effect.

[0044] When in use, start the drive motor to drive the rotary cylinder to rotate, and the high-temperature flue gas generated by the combustion of natural gas heats the front section of the rotary cylinder in the roasting section. After the cylinder temperature reaches the requirement, the material is transported into the cylinder by the feed port conveying equipment. Through the action of the guide plate and the scraper plate, the material is dispersed and fully contacted with the process air in the cylinder to achieve roasting. The roasted material enters the cooling section and is indirectly cooled by cooling water. It is lifted to the discharge short-circuit by the scraper hopper on the inner side of the cylinder discharge end and then taken out by the guide plate to the discharge port for unloading. The process air and high-temperature flue gas are guided to the exhaust gas treatment system under the action of the induced draft system for dust removal and purification before being discharged.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrated roasting and cooling kiln, characterized in that: It comprises a rotary cylinder, the front section of the rotary cylinder is used as a drying and roasting section, a shell is arranged outside the drying and roasting section, the rear section of the rotary cylinder is used as a cooling section, and a water tank is arranged at the bottom outside the cooling section; a material guiding device is arranged inside the rotary cylinder, the front end of the rotary cylinder is a material inlet, and the rear end is a material outlet; The feed port of the rotary cylinder is connected to the feed cover through a feed short circuit, and the feed cover is sealed by a feed cover seal, and a process air outlet is arranged on the feed cover; The discharge port of the rotary cylinder is connected to the discharge cover through a discharge short circuit, and the discharge cover is sealed by a discharge cover seal, and a process air inlet is arranged on the discharge cover.

2. The integrated roasting and cooling kiln according to claim 1, characterized in that: The material guiding device comprises a material guiding plate, a lifting plate and a lifting hopper, and the material guiding plate and the lifting plate spiral are arranged on the inner wall surface of the rotary cylinder.

3. The integrated roasting and cooling kiln according to claim 1, characterized in that: The shell is provided with a high-temperature smoke inlet and an explosion-proof hole.

4. The integrated roasting and cooling kiln according to claim 1, characterized in that: A plurality of cooling spray pipes are arranged above the rotary cylinder of the cooling section, and the cooling spray pipes are arranged parallel to the rotary cylinder.

5. The integrated roasting and cooling kiln according to claim 1, characterized in that: A drain outlet is arranged at the bottom of the water tank.

6. The integrated roasting and cooling kiln according to claim 1, characterized in that: A gear ring is arranged at the middle position of the rotary cylinder, and the gear ring is meshed with a driving gear of a transmission device to drive the rotary cylinder to rotate.

7. The integrated roasting and cooling kiln according to claim 1, characterized in that: A plurality of rolling rings are also arranged on the outer ring of the rotary cylinder, and the rolling rings cooperate with the supporting wheel device to support the rotary cylinder for rotation.

8. The integrated roasting and cooling kiln according to claim 1, characterized in that: The front end of the rotary cylinder is also provided with a wireless temperature measuring device and a vibration device.

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