Water-cooling jacket cooling machine

Abstract

A water-cooling jacket is arranged on the outer wall of the middle rear portion of a rotary cylinder of the water-cooling jacket cooling machine, a water inlet pipe is arranged in the center of an inner cavity of the front portion of the rotary cylinder, the rear end of the water inlet pipe is communicated with the front end of the water-cooling jacket, the rear end of the water-cooling jacket is communicated with a water return pipe, and the water return pipe is communicated with a water inlet pipe. The rear portion of the water return pipe is located outside the rotary barrel, the front portion of the water return pipe penetrates through the front body wall of the rotary barrel to enter an inner cavity of the rotary barrel, and the front end of the water return pipe is bent in the radial direction and communicates with an inner cavity of a double-layer sleeve arranged on the water inlet pipe in a sleeving mode. The water inlet pipe and the double-layer sleeve penetrate through a discharging end cover of the rotary cylinder together and then are connected with one end of a double-channel rotary joint, and a corresponding water inlet and a corresponding water outlet are formed in the other end of the double-channel rotary joint. Indirect heat exchange is adopted, direct contact between air and materials is avoided, the dust concentration in tail gas is reduced, and diffusion of stimulation type gas is also reduced.

Description

Technical Field

[0001] The utility model relates to a cooling technology of a cooler, in particular to a water-cooled jacket cooler. Background Art

[0002] In the production processes of building materials, metallurgy, and chemical industries, after the clinker (800 - 1000 °C) is calcined in a rotary kiln, due to the high temperature of the material, it is difficult for general conveying equipment to withstand such high-temperature materials. Generally, a single-cylinder cooler or a vertical cooler is used in the industry for cooling.

[0003] For a single-cylinder cooler, the cylinder rotates to drive the material to fully exchange heat with cold air, so that the material is cooled to below 200 °C. A vertical cooler is generally used in the industry of calcining active lime (the material is in block form), and it also uses cold air to fully contact the material to complete heat exchange and reduce the material temperature.

[0004] For both coolers, cold air needs to directly contact the material. For powdery materials, a part of the material will inevitably be carried in the tail gas, and a cyclone dust collector and a bag filter need to be added in the subsequent tail gas treatment to recover and reduce the dust content in the tail gas to meet the emission requirements.

[0005] In addition, for some special materials (high-temperature fluorogypsum waste residue produced in an alumina production line), they have a strong pungent smell. To avoid the spread of the pungent smell, they are not suitable for the above coolers.

[0006] The authorized announcement number CN 86200751 U discloses a rotary drum cooler, which is characterized in that the water inlet and outlet device is disconnected from the cylinder body, and the two are connected by a flexible connection. The outer layer of the cylinder body is a water-cooled jacket, and the inside of the cylinder body is a cooling pipe. A flexible connection is adopted between the cylinder body and the water inlet and outlet device. That is: the inlet and outlet of the cooling water in the cylinder body are connected to the water inlet and outlet device by a high-temperature and high-pressure resistant hose; the water inlet and outlet device is driven by a universal coupling at the end of the cylinder body to rotate synchronously with the cylinder body. The hot calcined sand is discharged from the discharge port on the cylinder body after cooling.

[0007] However, the above technical solutions have some deficiencies: one is that the hose connection affects the strength and service life, and the other is that the return water structure is complex and only partial regions can return water, affecting the circulation. Summary of the Utility Model

[0008] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a water-cooled jacket cooler with reasonable design, simple structure and good cooling effect.

[0009] The technical solution of the utility model is:

[0010] A water-cooled jacket cooler, comprising a feeding device, a supporting device of carrying rollers, a rotary cylinder, a driving device, a supporting device of retaining rollers and a discharging device. An annular water-cooled jacket is arranged on the outer wall of the middle and rear part of the rotary cylinder. An axial water inlet pipe is arranged at the center of the inner cavity of the front part of the rotary cylinder. The rear end of the water inlet pipe is communicated with the front end of the water-cooled jacket through a radial communicating pipe. The rear end of the water-cooled jacket is communicated with a water return pipe. The rear part of the water return pipe is located outside the rotary cylinder. The front part of the water return pipe penetrates through the front body wall of the rotary cylinder and enters the inner cavity of the rotary cylinder. A double-layer sleeve is arranged on the water inlet pipe. The rear end of the double-layer sleeve is sealed with the water inlet pipe. The front end of the water return pipe is bent radially and communicated with the inner cavity of the double-layer sleeve. The water inlet pipe and the double-layer sleeve penetrate through the discharging end cover of the rotary cylinder together and are connected with one end of a double-channel rotary joint. The other end of the double-channel rotary joint is provided with corresponding water inlet and outlet ports.

[0011] Further: A jacket expansion joint is arranged on the water-cooled jacket, and a water return pipe expansion joint is arranged on the water return pipe, which can reduce the deformation caused by heat.

[0012] Further: There are at least two water return pipes which are evenly distributed along the circumference. And the rear part of the water return pipe is fixed on the outer wall of the rotary cylinder or the outer wall of the water-cooled jacket through a bracket, and the front part of the water return pipe is fixed on the inner wall of the rotary cylinder through a bracket.

[0013] Further: There is at least one communicating pipe which is evenly distributed along the circumference. The inner end of each communicating pipe is communicated with the water inlet pipe, and the outer end of each communicating pipe is communicated with the water-cooled jacket.

[0014] Further: The water inlet pipe is connected with the inside of the rotary cylinder through a support frame. There are at least two support frames which are arranged at intervals along the axis. Each support frame includes a sleeve in the middle and support rods diverging radially around. The sleeve is sleeved on the water inlet pipe, and the outer ends of the support rods are connected with the inner wall of the rotary cylinder. Here is a copy of the claim. After the claim is determined, it will be filled in.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model adopts a water-cooled jacket for indirect heat exchange, avoiding direct contact between air and materials, reducing the dust concentration in the tail gas, and also reducing the diffusion of irritating gases, meeting the material cooling requirements.

[0017] 2. The utility model adopts a double-layer sleeve and a double-channel rotary joint, enabling the water inlet pipe and the water return pipe to flow concentrically, and combining the stationary part and the rotating part together, with a compact structure and small occupied space.

[0018] 3. The utility model uses a support to fix the water inlet pipe at the center of the inner cavity of the rotary cylinder, and the support frame uses spaced radioactive support rods, which does not affect the flow of the material flow.

[0019] 4. The utility model is respectively provided with a jacket expansion joint and a return water pipe expansion joint, which can adapt to the influence of temperature change on the water cooling system, avoid torsion damage, and effectively prevent water leakage caused by pressure damage.

[0020] 5. The utility model has a simple structure, high productivity and strong adaptability. Compared with the traditional cooler, the technological process is shortened, the construction investment of the enterprise and the production operation and maintenance cost are reduced, and good economic benefits can be obtained after popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a water-cooled jacket cooler;

[0022] Figure 2 is Figure 1 a schematic structural diagram of the middle cylinder;

[0023] Figure 3 is Figure 2 an enlarged view at A in;

[0024] Figure 4 is Figure 2 a partial enlarged view of the discharge end in;

[0025] Figure 5 is Figure 2 a sectional view taken along line B-B in;

[0026] Figure 6 is Figure 5 a sectional view taken along line C-C in. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Embodiment: Refer to Figure 1 — Figure 6 , in the figure, 1 - feeding device, 2 - idler support device, 3 - rotary cylinder, 4 - water-cooled jacket device, 5 - circulating water pipeline, 6 - transmission device, 7 - retaining wheel support device, 8 - discharging device, 9 - water inlet, 10 - water return port, 11 - jacket expansion joint, 12 - return water pipe expansion joint, 13 - water-cooled jacket, 14 - return water pipe, 15 - water inlet pipe, 16 - support frame, 17 - double-layer sleeve, 18 - double-channel rotary joint.

[0028] A water-cooled jacket cooling machine, comprising a feeding device 1, a supporting device 2 for supporting rollers, a rotary cylinder body 3, a water-cooled jacket device 4, a circulating water pipeline 5, a driving device 6, a supporting device 7 for retaining rollers and a discharging device 8, characterized in that: an annular water-cooled jacket 13 is arranged on the outer wall of the middle and rear part of the rotary cylinder body 3; an axial water inlet pipe 15 is arranged at the center of the inner cavity of the front part of the rotary cylinder body 3; the rear end of the water inlet pipe 15 is communicated with the front end of the water-cooled jacket 13 through a radial communicating pipe; the rear end of the water-cooled jacket 13 is communicated with a water return pipe 14; the rear part of the water return pipe 14 is located outside the rotary cylinder body 3; the front part of the water return pipe 14 penetrates through the front body wall of the rotary cylinder body 3 and enters the inner cavity of the rotary cylinder body 3; a double-layer sleeve 17 is arranged on the water inlet pipe 15; the rear end of the double-layer sleeve 17 is sealed with the water inlet pipe 15; the front end of the water return pipe 14 is bent radially and communicated with the inner cavity of the double-layer sleeve 17; the water inlet pipe 15 and the double-layer sleeve 17 penetrate through the discharging end cover of the rotary cylinder body 3 together and are connected with one end of a double-channel rotary joint 18; the other end of the double-channel rotary joint 18 is provided with corresponding water inlets 9 and water outlets 10. In this way, when the rotary cylinder body 3 rotates, the water inlets 9 and water outlets 10 can remain stationary, reducing the installation difficulty.

[0029] Preferred solution: a jacket expansion joint 11 is arranged on the water-cooled jacket 13, and a water return pipe expansion joint 12 is arranged on the water return pipe 14, which can reduce the deformation caused by heat.

[0030] Preferred solution: there are at least two water return pipes 14 and they are evenly distributed along the circumference (two in the figure, and of course they can also be four, six, eight, etc., not listed one by one), and the rear part of the water return pipe 14 is fixed on the outer wall of the rotary cylinder body 3 or the outer wall of the water-cooled jacket 13 through a bracket, and the front part of the water return pipe 14 is fixed on the inner wall of the rotary cylinder body 3 through a bracket.

[0031] Preferred solution: there is at least one communicating pipe and they are evenly distributed along the circumference (other quantities can also be adopted, not listed one by one), the inner end of each communicating pipe is communicated with the water inlet pipe 15, and the outer end of each communicating pipe is communicated with the water-cooled jacket 13.

[0032] Preferred solution: the water inlet pipe 15 is connected with the inside of the rotary cylinder body 3 through a support frame 16, there are at least two support frames 16 and they are arranged at intervals along the axis (three in the figure, and can also be four, six, etc., not listed one by one), each support frame 16 includes a middle sleeve and radially diverging support rods around it, the sleeve is sleeved on the water inlet pipe 15, and the outer ends of the support rods are connected with the inner wall of the rotary cylinder body 3.

[0033] During operation,

[0034] The transmission device 6 drives the rotary cylinder 3 to rotate. Taking the direction of material flow as the reference for the front-back direction, high-temperature materials are fed into the interior of the rotary cylinder 3 from the feeding device 1. Due to the slow rotary motion of the rotary cylinder 3 in an inclined state, under the action of gravity, the materials roll along the circumferential direction while moving from the feeding end (high end) to the discharging end (low end) of the cooler.

[0035] The pressurized water source enters the water inlet pipe 15 from the water inlet 9, and then enters the front end of the water-cooled jacket 13. The water-cooled jacket 13 exchanges heat with the rotary cylinder 3. After heat exchange, the water enters the return water pipe 14 from the rear end of the water-cooled jacket 13, and finally enters the circulating water system through the water return port 10. The materials are cooled in the cooler and discharged from the lower part of the discharging device 8 and enter the next process.

[0036] In the present utility model, both the water inlet pipe 15 and the return water pipe 14 are made of rigid water pipes, which have a long service life. Moreover, the return water pipe 14 and the water inlet pipe 15 can simultaneously intake and discharge water, and the circulation effect is good.

[0037] The above are only the preferred examples of the present utility model, and do not impose any form of limitation on the present utility model. Any simple modification made based on the technical essence of the present utility model still falls within the scope of the technical solution of the present utility model.

Claims

1. A water-cooled jacket cooler, comprising a feeding device, a supporting device for carrying rollers, a rotary cylinder, a transmission device, a supporting device for retaining rollers and a discharging device, characterized in that: An annular water-cooled jacket is provided on the outer wall of the middle and rear part of the rotary cylinder body. An axial water inlet pipe is provided at the center of the inner cavity of the front part of the rotary cylinder body. The rear end of the water inlet pipe is communicated with the front end of the water-cooled jacket through a radial connecting pipe. The rear end of the water-cooled jacket is communicated with a water return pipe. The rear part of the water return pipe is located outside the rotary cylinder body. The front part of the water return pipe penetrates through the front body wall of the rotary cylinder body and enters the inner cavity of the rotary cylinder body. A double-layer sleeve is provided on the water inlet pipe. The rear end of the double-layer sleeve is sealed with the water inlet pipe. The front end of the water return pipe is bent radially and communicated with the inner cavity of the double-layer sleeve. The water inlet pipe and the double-layer sleeve penetrate through the discharge end cover of the rotary cylinder body together and are connected to one end of a double-channel rotary joint. The other end of the double-channel rotary joint is provided with corresponding water inlet and outlet ports.

2. The water-cooled jacket cooler according to claim 1, characterized in that: A jacket expansion joint is provided on the water-cooled jacket, and a water return pipe expansion joint is provided on the water return pipe, which can reduce the deformation caused by heat.

3. The water-cooled jacket cooler according to claim 1, characterized in that: There are at least two water return pipes and they are evenly distributed along the circumference. Moreover, the rear parts of the water return pipes are fixed on the outer wall of the rotary cylinder body or the outer wall of the water-cooled jacket through brackets, and the front parts of the water return pipes are fixed on the inner wall of the rotary cylinder body through brackets.

4. The water-cooled jacket cooler according to claim 1, characterized in that: There is at least one connecting pipe and they are evenly distributed along the circumference. The inner end of each connecting pipe is communicated with the water inlet pipe, and the outer end of each connecting pipe is communicated with the water-cooled jacket.

5. The water-cooled jacket cooler according to claim 1, wherein: The water inlet pipe is connected to the inside of the rotary cylinder body through a support frame. There are at least two support frames and they are arranged at intervals along the axis. Each support frame includes a middle sleeve and radially diverging support rods around it. The sleeve is sleeved on the water inlet pipe, and the outer ends of the support rods are connected to the inner wall of the rotary cylinder body.

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