Ceramic raw material slurry heating device

Abstract

The utility model discloses a ceramic raw material slurry heating device, which belongs to the technical field of ceramic processing, and comprises a slurry tank and a preheating module, and the slurry tank is communicated with a drying tower through the preheating module; the preheating module comprises a heat exchanger and a heat source, an inner cavity is formed in the heat exchanger, a heat exchange pipe is arranged in the inner cavity, one end of the heat exchange pipe is communicated with the slurry tank, the other end of the heat exchange pipe is communicated with the drying tower, and the heat source is used for conveying heat to the inner cavity. According to the ceramic raw material slurry heating device, the problems of high process cost and low efficiency of air drying of slurry by using a drying tower in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic processing, in particular to a ceramic raw material slurry heating device. Background Art

[0002] After the ceramic raw materials on the market are slurried into a mud slurry, they need to enter a spray drying tower to dry them into a powder before being collected. The existing process involves pumping the mud slurry directly through the tower's powder pump to the spray drying tower's nozzle for mud spraying. Hot air at around 650°C is then blown into the spray drying tower for air drying. However, the temperature difference between the mud and the fully air-dried powder is quite large, and using hot air drying directly results in high energy costs. Furthermore, the low-temperature mud has poor fluidity, and the flow rate from the tower's powder pump to the drying tower's nozzle is slow, resulting in low process efficiency. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides a ceramic raw material slurry heating device to solve the above problems.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a ceramic raw material slurry heating device, comprising a slurry tank and a preheating module, wherein the slurry tank is connected to a drying tower through the preheating module;

[0005] The preheating module includes a heat exchanger and a heat source. An inner cavity is formed in the heat exchanger. A heat exchange pipe is provided in the inner cavity. One end of the heat exchange pipe is connected to the mud tank, and the other end of the heat exchange pipe is connected to the drying tower. The heat source is used to transfer heat to the inner cavity.

[0006] It is worth noting that a plurality of vertical flow guide tubes are provided in parallel in the inner cavity, and the output port and the return port of the heat source are respectively connected to the two ends of the vertical flow guide tubes.

[0007] Preferably, the heat source is in communication with the inner cavity.

[0008] Optionally, the heat exchange pipe is a coil, and the heat exchange pipe is spirally arranged in the inner cavity of the heat exchanger.

[0009] Specifically, the heat exchange pipe is a vertical pipe, and a plurality of heat exchange pipes are arranged in parallel in the inner cavity of the heat exchanger.

[0010] It is worth noting that a stirring paddle is provided in the mud tank.

[0011] The beneficial effect of this utility model is that, in the ceramic raw material slurry heating device, the slurry is preheated by the preheating module before entering the drying tower. After the heat generated by the heat source enters the heat exchanger, it contacts the heat exchanger tube, thereby heating the slurry in the heat exchanger tube to approximately 68°C, thereby reducing the temperature difference from the temperature when fully air-dried into powder and achieving the purpose of energy conservation. In addition, the preheated slurry has improved fluidity, thereby accelerating the efficiency of its flow to the nozzle of the drying tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a ceramic raw material slurry heating device in one embodiment of the present invention;

[0013] Figure 2 This is a structural diagram of a heat exchanger in an embodiment of the present invention when the cross-heat pipe is a vertical pipe;

[0014] Figure 3 This is a schematic structural diagram of a ceramic raw material slurry heating device in which the heat source is a kiln in one embodiment of the present invention;

[0015] Figure 4 This is a schematic structural diagram of a heat exchanger in an embodiment of the present invention when the heat exchange pipe is a coil;

[0016] Figure 5 This is a schematic structural diagram of a ceramic raw material slurry heating device in which the heat source is a chimney in one embodiment of the present invention;

[0017] Figure 6 This is a schematic structural diagram of a ceramic raw material slurry heating device in which the heat source is a steam generating mechanism in one embodiment of the present invention;

[0018] In the figure: 1 mud tank; 11 stirring paddle; 2 preheating module; 21 heat exchanger; 211 vertical guide pipe; 212 coil; 213 vertical pipe; 214 overflow output port; 22 heat source; 221 kiln; 222 chimney; 223 steam generating mechanism; 23 heat output pipe; 24 return pipe; 25 water collecting tank; 26 filter; 27 mud pump; 28 water storage tank; 3 drying tower; 4 tower powder making pump. DETAILED DESCRIPTION

[0019] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0020] like Figure 1-6As shown, a ceramic raw material slurry heating device includes a slurry tank 1 and a preheating module 2, wherein the slurry tank 1 is connected to a drying tower 3 through the preheating module 2;

[0021] The preheating module 2 includes a heat exchanger 21 and a heat source 22. The heat exchanger 21 defines an inner cavity, within which a heat exchange pipe is disposed. One end of the heat exchange pipe communicates with the mud tank 1, and the other end communicates with the drying tower 3. The heat source 22 is used to deliver heat to the inner cavity. In this embodiment, the mud tank 1 communicates with the heat exchange pipe via a mud pump 27, and the drying tower 3 communicates with the heat exchange pipe via a tower milling pump 4.

[0022] In the ceramic raw material slurry heating device, the slurry is preheated by preheating module 2 before entering drying tower 3. Heat generated by heat source 22 enters heat exchanger 21 and contacts the heat exchange pipe, thereby heating the slurry within the heat exchange pipe to approximately 68°C. This reduces the temperature difference from the temperature of the fully air-dried powder and achieves energy savings. Furthermore, the preheated slurry has improved fluidity, thereby accelerating its flow to the nozzles of drying tower 3.

[0023] A stirring paddle 11 is provided in the mud tank 1. Stirring the mud by the stirring paddle 11 can prevent the mud from solidifying and increase the fluidity of the mud.

[0024] Example 1: Figure 1 and 2 As shown, the inner cavity is provided with a plurality of vertical flow guide tubes 211 in parallel, and the output port and return port of the heat source 22 are respectively connected to the two ends of the vertical flow guide tubes 211. In this embodiment, the heat source 22 is provided with a heat output tube 23 and a return tube 24. The heat output tube 23 is connected to one end of the vertical flow guide tube 211, and the return tube 24 is connected to the other end of the vertical flow guide tube 211, thereby forming a circulation.

[0025] The heat exchange pipe is a vertical pipe 213, and multiple heat exchange pipes are arranged in parallel within the inner cavity of the heat exchanger 21. When the output port and return port of the heat source 22 are respectively connected to the two ends of the vertical guide pipe 211, the output port of the heat source 22 is located above the return port. In this way, hot air or hot water will flow from top to bottom along the vertical guide pipe 211. The port connecting the heat exchange pipe to the mud tank 1 is located near the bottom of the heat exchanger 21 in the inner cavity, and the port connecting the heat exchange pipe to the drying tower 3 is located near the top of the heat exchanger 21 in the inner cavity, thereby forming a coordinated connection and accelerating heat conduction.

[0026] Example 2: Figure 3-6As shown, the heat source 22 is in communication with the inner cavity. In this embodiment, an overflow outlet 214 is provided on the side wall of the heat exchanger 21 near its top, and the overflow outlet 214 is in communication with a water collecting tank 25, which is in communication with the return port of the heat source 22 through a filter 26.

[0027] The heat exchange pipe is a coil 212, which is spirally arranged in the inner cavity of the heat exchanger 21. The port for connecting the heat exchange pipe to the mud tank 1 is located near the top of the heat exchanger 21 in the inner cavity, and the port for connecting the heat exchange pipe to the drying tower 3 is located near the bottom of the heat exchanger 21 in the inner cavity.

[0028] In this embodiment, the heat source 22 can be a hot water heating device, which takes heat from the kiln 221 and heats cold water into hot water. The hot water heating device can also take heat from the flue gas in the chimney 222 and heat cold water into hot water, thereby realizing energy recycling and achieving the purpose of energy saving. In addition, another water storage tank 28 can be set to avoid the situation of insufficient reflux water. The heat source 22 can also be a steam generating mechanism 223, which generates hot steam and inputs it into the heat exchanger 21 to achieve heating of the mud in the heat exchange pipe.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A ceramic raw material slurry heating device, characterized by: It includes a mud tank and a preheating module, wherein the mud tank is connected to the drying tower through the preheating module; The preheating module includes a heat exchanger and a heat source. An inner cavity is formed in the heat exchanger. A heat exchange pipe is provided in the inner cavity. One end of the heat exchange pipe is connected to the mud tank, and the other end of the heat exchange pipe is connected to the drying tower. The heat source is used to transfer heat to the inner cavity.

2. The ceramic raw material slurry heating device according to claim 1, characterized in that: The inner cavity is provided with a plurality of vertical flow guide pipes in parallel, and the output port and the return port of the heat source are respectively communicated with the two ends of the vertical flow guide pipes.

3. The ceramic raw material slurry heating device according to claim 1, characterized in that: The heat source is in communication with the inner cavity.

4. The ceramic raw material slurry heating device according to claim 1, characterized in that: The heat exchange pipe is a coil, and the heat exchange pipe is spirally arranged in the inner cavity of the heat exchanger.

5. The ceramic raw material slurry heating device according to claim 1, characterized in that: The heat exchange pipe is a vertical pipe, and a plurality of heat exchange pipes are arranged in parallel in the inner cavity of the heat exchanger.

6. The ceramic raw material slurry heating device according to claim 1, characterized in that: A stirring paddle is provided in the mud tank.

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