Rotary valve suitable for high-temperature material conveying

Abstract

The rotary valve comprises a high-temperature-resistant box body, a high-temperature-resistant rotor and a high-temperature-resistant air locking end cover assembly, the high-temperature-resistant air locking end cover assembly comprises an inner end cover and an outer end cover, the inner end cover and the outer end cover are integrally formed, the inner end cover is provided with a water cooling cavity, a water inlet is formed in the upper end of the inner end cover, and a water outlet is formed in the lower end of the outer end cover. A water inlet is formed in the upper end of the inner end cover, the water inlet is communicated with the water cooling cavity, a water outlet is formed in the lower end of the inner end cover, the water outlet is communicated with the water cooling cavity, and an air inlet is communicated with the side wall of the inner end cover. The high-temperature-resistant air locking end cover assembly is suitable for conveying high-temperature materials, when the high-temperature materials are conveyed, a shaft end sealing piece, a bearing, a motor and other components can be effectively protected, and the service life of the rotary valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bulk material supply and discharge devices, in particular to a rotary valve suitable for high-temperature material conveying. Background Art

[0002] The rotary valve is also called a rotary feeder, a rotary feeder, a star feeder, an air shutoff, an ash discharge valve, an air lock or an impeller feeder. It is mainly composed of a box, a rotor and a transmission mechanism. The rotor is rotatably installed in the box, and the transmission mechanism drives the rotor to rotate. The box has a feed port and a discharge port. After the material is introduced from the feed port of the box, it is led out of the discharge port in batches through the rotation of the rotor (impeller).

[0003] Conventional high-temperature resistant rotary valves can generally withstand temperatures of around 300°C. The high-temperature medium and the high-temperature air it carries are a considerable test for the shaft end seals, bearings and transmission mechanism motors. If no corresponding measures are taken, damage will occur frequently, and some specially customized high-temperature resistant rotary valves can often only withstand temperatures of around 500~600°C. When the high-temperature medium reaches 800°C or even 900°C, other conveying methods have to be selected, which is labor-intensive and the equipment cost will also increase greatly. Therefore, in order to solve the problem that when using a rotary valve to convey materials, the material temperature is too high, which will frequently burn seals, bearings and motors, a rotary valve suitable for high-temperature material conveying is proposed. Utility Model Content

[0004] The utility model aims to solve the disadvantages of the prior art that when conveying high-temperature media, other conveying methods have to be selected, which is labor-intensive and the equipment cost will be greatly increased, and a rotary valve suitable for conveying high-temperature materials is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary valve suitable for high-temperature material conveying comprises a high-temperature resistant box, a high-temperature resistant rotor and a high-temperature resistant air-locking end cover assembly.

[0007] The high temperature resistant air lock end cover assembly comprises an inner end cover and an outer end cover, and the inner end cover and the outer end cover are integrally formed.

[0008] The inner end cover is provided with a water cooling cavity, and a water inlet is provided at the upper end of the inner end cover, and the water inlet is communicated with the water cooling cavity.

[0009] A water outlet is provided at the lower end of the inner end cover, and the water outlet is communicated with the water cooling cavity.

[0010] The side wall of the inner end cover is connected with an air inlet.

[0011] Preferably, there are two high temperature resistant air lock end cover assemblies.

[0012] Preferably, a high temperature resistant rotor is installed inside the high temperature resistant housing, the output end of the transmission mechanism is fixedly connected to the shaft head of the high temperature resistant rotor, an inner end cover is installed on the high temperature resistant rotor, and the outer end cover is fixedly connected to the surface of the high temperature resistant housing.

[0013] Preferably, the upper end of the high temperature resistant box is connected to a feed inlet, and the lower end of the high temperature resistant box is connected to a discharge outlet.

[0014] Preferably, a water inlet channel cocentric with the water inlet is formed at the top of the outer end cover, and a water outlet channel cocentric with the water outlet is formed at the bottom of the outer end cover.

[0015] Preferably, the transmission mechanism is a motor dedicated to the rotary valve.

[0016] The utility model has the following beneficial effects:

[0017] The utility model adopts the structure and design of the high-temperature resistant air locking end cover assembly, water cooling chamber, water inlet and water outlet. When conveying high-temperature materials, cooling water can enter the water cooling chamber from the water inlet, and discharge from the water outlet after absorbing heat, thereby continuously cooling the high-temperature resistant air locking end cover assembly. At the same time, compressed air is introduced through the air inlets of the high-temperature resistant air locking end cover assemblies on both sides to squeeze out the high-temperature outlet, thereby preventing the high-temperature gas from escaping from the shaft end. In summary, when in use, the device can be suitable for conveying high-temperature materials. When conveying high-temperature materials, it can effectively protect the shaft end seals, bearings, motors and other components, thereby extending the service life of the rotary valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional structural schematic diagram of a rotary valve;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of a rotary valve;

[0020] Figure 3 It is a schematic structural diagram of a side view of a rotary valve.

[0021] In the figure: 1. high temperature resistant housing; 2. high temperature resistant rotor; 3. high temperature resistant air lock end cover assembly; 301. water cooling chamber; 4. transmission mechanism; 5. air inlet; 6. water inlet; 7. water outlet. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-3A rotary valve suitable for high-temperature material conveying includes a high-temperature resistant housing 1, a high-temperature resistant rotor 2 and a high-temperature resistant air-locking end cover assembly 3.

[0024] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the upper end of the high temperature resistant box body 1 is connected with a feed port, and the lower end of the high temperature resistant box body 1 is connected with a discharge port.

[0025] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a high temperature resistant rotor 2 is installed inside the high temperature resistant housing 1, the output end of the transmission mechanism 4 is fixedly connected to the shaft head of the high temperature resistant rotor 2, an inner end cover is installed on the high temperature resistant rotor 2, and the outer end cover is fixedly connected to the surface of the high temperature resistant housing 1.

[0026] Furthermore, the transmission mechanism 4 is a motor dedicated to the rotary valve, which is far away from the conveying channel, thus greatly blocking the heat transfer.

[0027] The high temperature resistant air lock end cover assembly 3 comprises an inner end cover and an outer end cover, and the inner end cover and the outer end cover are integrally formed.

[0028] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, there are two high temperature resistant air locking end cover assemblies 3, and the two high temperature resistant air locking end cover assemblies 3 seal the rotor cavity. In order to prevent high temperature materials from directly contacting the high temperature resistant air locking end cover assemblies 3, the high temperature resistant rotor serves as a sealing plate to prevent the high temperature materials from directly contacting the end cover.

[0029] Furthermore, in order to transport high-temperature materials, the main bodies of the high-temperature resistant box 1, the high-temperature resistant rotor 2, and the high-temperature resistant air-locking end cover assembly 3 are all made of stainless steel 310S material.

[0030] The inner end cover has a water cooling cavity 301 , and a water inlet 6 is opened at the upper end of the inner end cover, and the water inlet 6 is connected to the water cooling cavity 301 .

[0031] A water outlet 7 is provided at the lower end of the inner end cover, and the water outlet 7 is communicated with the water cooling chamber 301 .

[0032] The side wall of the inner end cover is connected with an air inlet 5. In order to prevent the high-temperature gas carried by the high-temperature material from escaping from the shaft end, compressed air is injected through the air inlet 5 to squeeze the high-temperature gas out from the outlet of the rotary valve.

[0033] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, a water inlet channel coaxial with the water inlet 6 is opened at the top of the outer end cover, and a water outlet channel coaxial with the water outlet 7 is opened at the bottom of the outer end cover.

[0034] Furthermore, the water inlet channel and the water outlet channel are provided to facilitate water filling and drainage operations.

[0035] When conveying high-temperature materials, cooling water can enter the water cooling chamber 301 from the water inlet 6 and be discharged from the water outlet 7 after absorbing heat, thereby continuously cooling the high-temperature resistant air-locking end cover assembly 3 .

[0036] Then, compressed air is introduced through the air inlets of the high-temperature resistant air locking end cover assemblies on both sides to squeeze out the high-temperature outlet, thereby preventing the high-temperature gas from escaping from the shaft end. In summary, when in use, this device can be suitable for high-temperature material transportation. When transporting high-temperature materials, it can effectively protect the shaft end seals, bearings, motors and other components, and extend the service life of the rotary valve.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotary valve suitable for high temperature material conveying, comprising a high temperature resistant housing (1), a high temperature resistant rotor (2) and a high temperature resistant air lock end cover assembly (3), characterized in that: The high temperature resistant air lock end cover assembly (3) comprises an inner end cover and an outer end cover, wherein the inner end cover and the outer end cover are integrally formed; The inner end cover has a water cooling cavity (301), and a water inlet (6) is provided at the upper end of the inner end cover, and the water inlet (6) is connected to the water cooling cavity (301); A water outlet (7) is provided at the lower end of the inner end cover, and the water outlet (7) is communicated with the water cooling chamber (301); The side wall of the inner end cover is connected to an air inlet (5).

2. A rotary valve suitable for high temperature material delivery according to claim 1, characterized in that: The number of the high temperature resistant air lock end cover components (3) is two.

3. A rotary valve suitable for high temperature material delivery according to claim 1, characterized in that: A high temperature resistant rotor (2) is installed inside the high temperature resistant housing (1), one end of the high temperature resistant rotor (2) is fixedly connected to the output end of the transmission mechanism (4), an inner end cover is installed on the high temperature resistant rotor (2), and the outer end cover is fixedly connected to the surface of the high temperature resistant housing (1).

4. A rotary valve suitable for high temperature material delivery according to claim 2, characterized in that: The upper end of the high temperature resistant box (1) is connected to a feed inlet, and the lower end of the high temperature resistant box (1) is connected to a discharge outlet.

5. The rotary valve suitable for high temperature material delivery according to claim 3, characterized in that: The top of the outer end cover is provided with a water inlet channel cocentric with the water inlet (6), and the bottom of the outer end cover is provided with a water outlet channel cocentric with the water outlet (7).

6. The rotary valve suitable for high temperature material delivery according to claim 3, characterized in that: The transmission mechanism (4) is a motor dedicated to the rotary valve.

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