Penetrating type water cooling pipe cooling device for atmosphere protection roller kiln

Abstract

The utility model discloses a penetrating type water-cooled tube cooling device for an atmosphere protection roller kiln. The penetrating type water-cooled tube cooling device comprises a plurality of linear water-cooled tubes, two mounting parts and two communicating parts, fast-assembly ball valves are arranged between the water inlet pipe and the corresponding communicating parts and between the water outlet pipe and the corresponding communicating parts; the opening degree of the quick-mounting ball valve can be adjusted; wherein the furnace body is provided with a plurality of outward extending pipes used for installing the linear water cooling pipes; a housing is detachably connected to the outward extending pipe; a guide pipe used for being inserted into the linear water cooling pipe is arranged on the housing. The penetrating type water cooling pipe cooling device for the atmosphere protection roller kiln is distributed on the upper layer and the lower layer of a sintered product, wing type cooling fins are evenly and tightly wound on the outer portion of a water cooling pipe, and a water inlet and a water outlet are connected through a quick coupler hoop. The problems that cooling time is too long, energy consumption is increased, and sealing is incomplete can be effectively solved. Therefore, the purposes of rapid cooling, uniform cooling, energy conservation, high efficiency and good sealing performance are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of roller kiln technology, and in particular relates to a through-type water-cooled pipe cooling device for atmosphere-protected roller kilns. Background Technology

[0002] A roller kiln is a tunnel-type kiln used for continuous firing, employing rotating rollers as the product transport vehicle. The product is placed on numerous closely spaced horizontal refractory rollers, and the rotation of these rollers transports the product from the kiln head to the kiln tail. After the firing and cooling processes, the product requires rapid cooling to ensure relative stability and prevent excessively high temperatures upon exiting the kiln. Traditional roller kilns typically use air circulation in the rapid cooling section at the kiln tail for cooling. This excessively long cooling time increases the firing cycle and reduces output; it also compromises the kiln's sealing performance, resulting in poor heat retention, increased energy consumption during firing, and poor energy efficiency.

[0003] Chinese patent document CN217210287U discloses a water-cooling control system for a roller kiln, including a controller, a first temperature sensor, a second temperature sensor, a cooling circuit pipe, a drive device, a storage tank, and a refrigeration device. The refrigeration device is used to cool the refrigerant in the storage tank. The cooling circuit pipe is located inside the kiln body, with its inlet connected to the outlet of the storage tank and its outlet connected to the return port of the storage tank. The drive device is used to drive the refrigerant to circulate through the cooling circuit pipe. The first temperature sensor is installed inside the kiln body, and the second temperature sensor is installed inside the storage tank. The controller is connected to the first temperature sensor, the second temperature sensor, the drive device, and the refrigeration device.

[0004] The aforementioned patented solution uses looped pipes at the top and bottom of the conveyor line for cooling. Although the looped pipes can increase the heat exchange contact area, the water flow path in the looped pipes is relatively long, and the temperature change of the water is more obvious. This causes changes in the solubility of dissolved minerals (calcium, magnesium, etc.) in the water. Over time, scale will inevitably form on the inner wall of the pipes, reducing the heat exchange efficiency. Moreover, the scale in the looped pipes is difficult to remove. The only solution is to replace the looped pipes as the heat exchange efficiency continues to decrease. Furthermore, the looped pipes in the aforementioned patented solution are large in volume and have a large diameter span, making them difficult to replace. Obviously, this water-cooling method is not ideal. Utility Model Content

[0005] To overcome the technical problems of existing technologies that use loop-shaped pipes to cool roller kilns, such as the long water flow path leading to scale formation due to temperature changes, resulting in reduced heat exchange efficiency, and the difficulty in replacing loop-shaped pipes, one objective of this utility model is to provide a through-type water-cooled pipe cooling device for atmosphere-protected roller kilns. By setting straight water-cooled pipes inside the roller kiln, the water flow path is shortened, and the scale inside the water-cooled pipes can be easily cleaned after removal. In addition, a guide pipe is provided to facilitate disassembly, preventing the fins of the water-cooled pipes from scraping and deforming against the furnace body when the linear water-cooled pipes are pulled out from one end.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a through-type water-cooled pipe cooling device for an atmosphere-protected roller kiln, comprising multiple linear water-cooled pipes disposed on the furnace body, two mounting portions respectively disposed at both ends of the linear water-cooled pipes, and two connecting portions respectively disposed at both ends of the linear water-cooled pipes; the two connecting portions are respectively connected to an inlet pipe and an outlet pipe; quick-install ball valves are provided between the inlet pipe and the outlet pipe and the corresponding connecting portions; the opening degree of the quick-install ball valves can be adjusted; wherein, multiple extension pipes for installing the linear water-cooled pipes are provided on the furnace body; a cover is detachably connected to the extension pipe; a guide pipe for inserting into the linear water-cooled pipe is provided on the cover.

[0007] Furthermore, locking plates are respectively provided above and below each of the extended tubes on the furnace body; a U-shaped opening is provided on one side of the locking plate; two radially arranged columns are symmetrically arranged on the outer wall of the cover; the radial columns can be selectively located within the U-shaped opening.

[0008] Preferably, the outer wall of the linear water-cooling pipe is provided with wing-shaped heat sinks; the outer side of the wing-shaped heat sinks is provided with a plurality of reinforcing ribs evenly distributed along the circumferential direction; the length direction of the reinforcing ribs is arranged along the axial direction of the linear water-cooling pipe.

[0009] When the radial column is located within the U-shaped opening, the guide tube is located within the linear water-cooling tube. This makes it easier and less strenuous to pull the linear water-cooling tube out from the other side, avoiding the scraping of the furnace body caused by excessively long end overhangs and bending. This also prevents the fin-shaped heat sink from deforming due to scraping against the furnace body. The reinforcing ribs further improve the scratch resistance of the fin-shaped heat sink and enhance its structural strength.

[0010] Specifically, the connecting part includes a quick-connect internal thread chuck disposed at the end of the linear water-cooling pipe, a water pipe disposed between the quick-connect internal thread chuck and the quick-connect ball valve, and a quick-connect coupling clamp disposed on the quick-connect internal thread chuck for installing the water pipe.

[0011] Furthermore, the quick-connect coupling clamp includes a clamping ring and a knob threaded onto the clamping ring; the knob is used to adjust the diameter of the clamping ring.

[0012] Specifically, the mounting part includes a positioning ring coaxially disposed on the extended tube, a clamping ring axially and sealingly slidably connected to the linear water-cooling tube, and a locking ring threadedly connected to the linear water-cooling tube.

[0013] Furthermore, the inner wall of the positioning ring is provided with a first conical surface on the side facing the clamping ring; the outer wall of the clamping ring is provided with a second conical surface on the side facing the positioning ring; the first conical surface and the second conical surface are interference-fitted, providing better sealing performance for the linear water-cooling pipe.

[0014] Preferably, two rows of linear water-cooling pipes are arranged on the furnace body above the conveying rollers; and one row of linear water-cooling pipes is arranged on the furnace body below the conveying rollers.

[0015] Preferably, the two rows of linear water-cooling pipes located at the top are staggered.

[0016] Preferably, a U-shaped connecting pipe can be optionally provided between two adjacent linear water-cooling pipes; the U-shaped connecting pipe is connected to the corresponding two linear water-cooling pipes.

[0017] The above-described arrangement of the linear water-cooling pipes provides sufficient heat dissipation while also making the structure more compact.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The atmosphere-protected roller kiln's through-type water-cooled pipe cooling device is distributed between the upper and lower layers of the fired products. The water-cooled pipes are uniformly and tightly wound with fin-shaped heat dissipation fins, and the inlet and outlet water circuits are connected by quick-connect couplings. This effectively solves the problems of excessively long cooling time, increased energy consumption, and incomplete sealing. Thus, it achieves the goals of rapid cooling, uniform cooling, energy efficiency, and good sealing performance.

[0020] 2. Linear water-cooling pipes reduce the flow path of water in the furnace body, decrease the temperature change range, and thus reduce scale formation. At the same time, the linear water-cooling pipes run through both ends, making it easier to clean the scale that is generated. This improves heat dissipation efficiency and reduces production costs.

[0021] 3. By setting guide tubes and reinforcing ribs, when the linear water cooling pipe is pulled out from one side, it avoids the end from drooping due to excessive overhang length, thereby preventing the feather-shaped heat sink from scraping against the furnace body and causing deformation, and also making the extraction and installation process easier. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of the roller kiln of this utility model.

[0023] Figure 2 For the present utility model Figure 1 A magnified view of part A in the middle;

[0024] Figure 3 For the present utility model Figure 1 Exploded view of the components in section A;

[0025] Figure 4 This is a partial structural schematic diagram of the linear water-cooled pipe of this utility model;

[0026] Figure 5 This is a schematic diagram of the disassembly structure of the guide rod of this utility model.

[0027] In the diagram: 1. Furnace body; 11. Outer tube; 12. Locking plate; 121. U-shaped opening; 2. Firing product; 3. Conveying roller; 4. Linear water cooling pipe; 41. Feather-shaped heat sink; 42. Reinforcing rib; 51. Water inlet pipe; 52. Water outlet pipe; 53. Quick-connect ball valve; 6. Quick-connect internal thread chuck; 7. Quick-connect connector clamp; 71. Knob; 81. Positioning ring; 811. First conical surface; 82. Pressure ring; 821. Second conical surface; 83. Locking ring; 9. Cover; 91. Guide tube; 92. Radial column. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] See Figures 1-5 A through-type water-cooled pipe cooling device for an atmosphere-protected roller kiln includes multiple linear water-cooled pipes 4 mounted on the furnace body 1, two mounting portions respectively located at both ends of the linear water-cooled pipes 4, and two connecting portions respectively located at both ends of the linear water-cooled pipes 4; the two connecting portions are respectively connected to an inlet pipe 51 and an outlet pipe 52; quick-install ball valves 53 are provided between the inlet pipe 51 and the outlet pipe 52 and the corresponding connecting portions; the quick-install ball valves 53 are sanitary quick-install ball valves, and their opening degree can be adjusted; the heat dissipation speed is adjusted by adjusting the cooling water flow rate.

[0033] The outer wall of the linear water-cooling pipe 4 is provided with a spiral-shaped wing-shaped heat sink 41; four reinforcing ribs 42 are provided on the outer side of the wing-shaped heat sink 41, which are evenly distributed along the circumferential direction; the length direction of the reinforcing ribs 42 is arranged along the axial direction of the linear water-cooling pipe 4.

[0034] The furnace body 1 is provided with a plurality of extended tubes 11 for installing the linear water-cooling tubes 4; locking plates 12 are respectively provided above and below each of the extended tubes 11 on the furnace body 1; a U-shaped opening 121 is provided on one side of the locking plate 12; two adjacent U-shaped openings 121 face the left and right sides respectively. A cover 9 is detachably connected to the extended tube 11; a guide tube 91 for inserting the linear water-cooling tube 4 is coaxially provided at the bottom of the cover 9; two radially arranged columns 92 are symmetrically arranged on the outer wall of the cover 9; the radial columns 92 can be selectively located within the U-shaped openings 121.

[0035] The connecting part includes a quick-release internal thread chuck 6 disposed at the end of the linear water-cooling pipe 4, a water pipe disposed between the quick-release internal thread chuck 6 and the quick-release ball valve 53, and a quick-release coupling clamp 7 disposed on the quick-release internal thread chuck 6 for installing the water pipe. The quick-release coupling clamp 7 includes a clamping ring and a knob 71 threadedly connected to the clamping ring; the knob 71 is used to adjust the diameter of the clamping ring; the water pipe is a chuck-type corrugated pipe.

[0036] The mounting portion includes a positioning ring 81 coaxially mounted on the extension tube 11, a clamping ring 82 axially and sealingly slidably connected to the linear water-cooling tube 4, and a locking ring 83 threadedly connected to the linear water-cooling tube 4. The inner wall of the positioning ring 81 has a first conical surface 811 on the side facing the clamping ring 82; the outer wall of the clamping ring 82 has a second conical surface 821 on the side facing the positioning ring 81.

[0037] Two rows of linear water-cooled pipes 4 are arranged on the furnace body 1 above the conveying roller 3; one row of linear water-cooled pipes 4 is arranged on the furnace body 1 below the conveying roller 3; the two rows of linear water-cooled pipes 4 at the top are staggered; a U-shaped connecting pipe can be optionally arranged between two adjacent linear water-cooled pipes 4; the U-shaped connecting pipe is connected to the two corresponding linear water-cooled pipes 4; the fired product 2 is conveyed at the upper end of the conveying roller 3.

[0038] Disassembly method for linear water-cooled tube: After removing the connecting parts at both ends of the linear water-cooled tube 4, completely remove the mounting part at one end of the linear water-cooled tube. Insert the guide tube 91 into the linear water-cooled tube 4 from that side, then rotate the cover 9 so that the radial column 92 enters the U-shaped opening 121. Subsequently, pull out the linear water-cooled tube 4 from the other side. The installation process is the reverse.

[0039] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An atmosphere protected roller hearth kiln through type water cooled tube cooling device characterized by: The application relates to a linear water-cooled pipe furnace body, which comprises a plurality of linear water-cooled pipes arranged on the furnace body, two mounting parts arranged at the two ends of the linear water-cooled pipes respectively, and two communication parts arranged at the two ends of the linear water-cooled pipes respectively; the two communication parts are communicated with water inlet pipes and water outlet pipes respectively; quick-mounting ball valves are arranged between the water inlet pipes and the water outlet pipes and the corresponding communication parts; the opening degrees of the quick-mounting ball valves can be adjusted; a plurality of outer extension pipes for mounting the linear water-cooled pipes are arranged on the furnace body; a cover shell is detachably connected to the outer extension pipes; guide pipes for being inserted into the linear water-cooled pipes are arranged on the cover shell.

2. Cooling device according to claim 1, characterized in that Locking plates are arranged above and below each outer extension pipe on the furnace body; a U-shaped opening is arranged on one side of the locking plate; two radial columns are symmetrically arranged on the outer wall of the cover shell; the radial columns are selectively arranged in the U-shaped opening.

3. Cooling device according to any of claims 1-2, characterized in that: Feather fin-shaped radiating fins are arranged on the outer wall of the linear water-cooled pipe; a plurality of reinforcing ribs are uniformly distributed in the circumferential direction on the outer side of the feather fin-shaped radiating fins; the length direction of the reinforcing ribs is arranged along the axial direction of the linear water-cooled pipe.

4. Cooling device according to any of claims 1-2, characterized in that: The communication part comprises a quick-mounting inner tooth chuck arranged at the end of the linear water-cooled pipe, a water pipe arranged between the quick-mounting inner tooth chuck and the quick-mounting ball valve, and a quick-mounting joint clamp for mounting the water pipe arranged on the quick-mounting inner tooth chuck.

5. Cooling device according to claim 4, characterized in that: The quick-mounting joint clamp comprises a clamping ring and a knob screw-connected to the clamping ring; the knob is used for adjusting the diameter of the clamping ring.

6. The cooling device of claim 2, wherein: The mounting part comprises a positioning ring coaxially arranged on the outer extension pipe, a compression ring sealingly and slidingly connected to the linear water-cooled pipe in the axial direction, and a locking ring screw-connected to the linear water-cooled pipe.

7. Cooling device according to claim 6, characterized in that A first taper surface is arranged on the inner wall of the positioning ring towards one side of the compression ring; a second taper surface is arranged on the outer wall of the compression ring towards one side of the positioning ring.

8. Cooling device according to any of claims 1-2, characterized in that: Two rows of linear water-cooled pipes are arranged above the conveying roller on the furnace body; one row of linear water-cooled pipes is arranged below the conveying roller on the furnace body.

9. Cooling device according to claim 8, characterized in that: The two rows of linear water-cooled pipes arranged above are arranged in a staggered mode.

10. Cooling device according to any of claims 1-2, characterized in that: A U-shaped communication pipe is selectively arranged between two adjacent linear water-cooled pipes; the U-shaped communication pipe is communicated with the two linear water-cooled pipes.

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