A device for heating and conveying material

Abstract

The utility model discloses a device for heating and conveying material, include: spiral feeder, shaft head, shaft seal, bearing seat and transmission mechanism, spiral feeder includes the casing, is equipped with the feed port and the discharge port on the casing, and the casing left end seat and casing right end seat for closing the casing are equipped with respectively in the both ends of casing, and the hollow screw shaft pipe is equipped with in the casing, and the hollow screw shaft pipe outer surface is equipped with the spiral blade, and the threading pipe is equipped with in the hollow screw shaft pipe, and the support pipe is equipped with outside the threading pipe, and the end plate for sealing and fixed support pipe is equipped with in the both ends of support pipe, and the heating element is equipped with around the support pipe outer surface, and the threading pipe inside and external power supply are connected to the wire inlet end and the wire outlet end of heating element. The utility model hollow inside rotation axis and is equipped with electric heating element, and the material is heated while conveying, satisfies the requirement of medium -high temperature heating, and the heater can also be arranged on the barrel wall of equipment, and the device structure is compact and heating efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of drying equipment, specifically relating to a device for heating and conveying materials. Background Technology

[0002] Materials (powders, granules, filter cakes, or liquids, etc.) often require heating or heat treatment during transport to remove moisture or other volatiles. Current screw conveyors or agitated dryers typically use hot water, steam, or thermal oil for heating, with temperatures generally not exceeding 300℃ (synthetic thermal oils can reach up to 400℃). However, for high-temperature heating processes such as coal pyrolysis and catalyst roasting (or calcination), temperatures are mostly above 500℃. If a rotary kiln is used in these conditions, electric heating elements or burners (oil, gas, or coal) need to be installed between the rotating cylinder and the furnace to heat the cylinder wall, which then transfers heat to the material. This results in a relatively low filling rate and low heat exchange efficiency. If a screw conveyor or dryer is used, hot water, steam, or thermal oil cannot meet the requirements of high-temperature conditions due to temperature limitations. Utility Model Content

[0003] The purpose of this invention is to provide a device for heating and conveying materials, so as to solve the problem of low thermal efficiency of heating devices in the prior art.

[0004] To achieve the above objectives, this utility model provides a device for heating and conveying materials, comprising:

[0005] A screw feeder includes a housing with an inlet and an outlet. A left end seat and a right end seat for sealing the housing are located at the left and right ends of the housing, respectively. A hollow screw shaft tube is located inside the housing, with screw blades on its outer surface. A conduit is located inside the hollow screw shaft tube, and a support tube is located outside the conduit. End plates for sealing and fixing the support tube are located at both ends of the support tube. A heating element is wound around the outer surface of the support tube, and the inlet and outlet ends of the heating element are connected to an external power source through the conduit.

[0006] The shaft head includes a left shaft head and a right shaft head. The left shaft head passes through the left end seat of the housing and connects to the left end of the hollow spiral shaft tube. The right shaft head passes through the right end seat of the housing and connects to the right end of the hollow spiral shaft tube.

[0007] The shaft seal includes a left shaft seal and a right shaft seal. The left shaft seal is sleeved on the left shaft head and close to the left end seat of the housing, and the right shaft seal is sleeved on the right shaft head and close to the right end seat of the housing.

[0008] The bearing housing includes a left bearing housing fitted onto the left shaft head and a right bearing housing fitted onto the right shaft head;

[0009] A transmission mechanism, which is connected to the shaft head.

[0010] The device for heating and conveying materials according to the present invention is characterized in that a heating device is provided on the outer surface of the housing.

[0011] The device for heating and conveying materials according to this utility model is characterized in that the hollow spiral shaft tube is one or more.

[0012] The device for heating and conveying materials according to this utility model is characterized in that the hollow spiral shaft tube consists of two tubes.

[0013] The device for heating and conveying materials according to this utility model is characterized in that the heating element is U-shaped, straight, or spiral.

[0014] The device for heating and conveying materials according to this utility model is characterized in that the housing is arranged horizontally or at an incline.

[0015] The beneficial effects of this utility model are:

[0016] The rotating shaft of this invention is hollow inside and equipped with an electric heating element, which heats the material while it is being conveyed, meeting the requirements for medium and high temperature heating; a heater can also be installed on the cylinder wall of the equipment, making the device compact and highly efficient in heating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the device for heating and conveying materials according to this utility model;

[0018] Figure 2 This is a wiring diagram for the heating element;

[0019] Figure 3 This is a schematic diagram of a structure with two hollow spiral shafts.

[0020] In the attached figures, the following labels are used:

[0021] 1. Left support for the conduit;

[0022] 2. Left axle head;

[0023] 3. Left bearing housing;

[0024] 4. Incoming line terminal;

[0025] 5. Heating element;

[0026] 6. Shell;

[0027] 7. Helical blades;

[0028] 8. Hollow spiral shaft tube;

[0029] 9. Left shaft seal;

[0030] 10. Left end seat of the housing;

[0031] 11. Conduit;

[0032] 12. Support tubes;

[0033] 13. End plate;

[0034] 14 Outgoing cable terminal;

[0035] 15. Right end seat of the housing;

[0036] 16. Right shaft seal;

[0037] 17. Right bearing housing;

[0038] 18. Right support for the conduit;

[0039] 19. Right axle head;

[0040] 20. Transmission mechanism;

[0041] 21. Left shaft seal of the conduit;

[0042] 22. Right shaft seal of the conduit;

[0043] 23. Feed inlet;

[0044] 24. Discharge port. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0046] like Figure 1 and Figure 2As shown, the device for heating and conveying materials according to this utility model includes: a screw feeder, a shaft head, a shaft seal, and a bearing seat. The screw feeder includes a housing 6, with an inlet 23 and an outlet 24. The left and right ends of the housing 6 are respectively provided with a left end seat 10 and a right end seat 15 for sealing the housing. The left end seat 10, the right end seat 15, and the housing 6 together form a hollow cavity for receiving and conveying materials. Inside the housing 6, i.e., within the hollow cavity, is a hollow screw shaft tube 8. The axis of the hollow screw shaft tube 8 is parallel to the axis of the hollow cavity. The outer surface of the hollow screw shaft tube 8 is provided with helical blades 7, which can... The screw can be single-headed or multi-headed (lead), and the pitch can be a fixed value or a variable pitch. The hollow spiral shaft tube 8 is provided with a wire guide tube 11 inside, and a support tube 12 is provided on the outside of the wire guide tube 11. The support tube 12 is provided with end plates 13 at both ends for sealing and fixing the support tube 12. A heating element 5 is wound around the outer surface of the support tube 12. In order to improve the heat exchange efficiency, preferably, the length of the support tube 12 occupies most of the length of the hollow spiral shaft tube 8. The inlet end 4 and outlet end 14 of the heating element 5 are both connected to an external power supply through the inside of the wire guide tube 11.

[0047] The shaft head includes a left shaft head 2 and a right shaft head 19. The left shaft head 2 passes through the left end seat 10 of the housing and is connected to the left end of the hollow spiral shaft tube 8. The right shaft head 19 passes through the right end seat 15 of the housing and is connected to the right end of the hollow spiral shaft tube 8.

[0048] The shaft seal includes a left shaft seal 9 and a right shaft seal 16. The left shaft seal 9 is sleeved on the left shaft head 2 and close to the left end seat 10 of the housing. The right shaft seal 16 is sleeved on the right shaft head 19 and close to the right end seat 15 of the housing.

[0049] The bearing housing includes a left bearing housing 3 sleeved on the left shaft head 9 and a right bearing housing 17 sleeved on the right shaft head 19;

[0050] The transmission mechanism 20 is connected to the shaft head. It can be connected to the left shaft head 9 or the right shaft head 19. The transmission mechanism 20 can be a motor or a reducer to provide power for the rotation of the shaft head. The rotation of the shaft head drives the hollow spiral shaft tube 8 to rotate.

[0051] In one specific embodiment, the conduit 11 passes through the left shaft head 2, the screw feeder, and the right shaft head 19. A left support 1 and a right support 18 for the conduit are respectively provided on the outer sides of the left shaft head 2 and the right shaft head 19. The conduit 11 can be fixed and not rotate with the hollow screw shaft tube 8, or it can rotate with the hollow screw shaft 8. When the conduit 11 rotates with the hollow screw shaft tube 8, the inlet end 4 and outlet end 14 of the heating element 5 are energized through carbon brushes and slip rings. The inlet end 4 can enter the conduit 11 from the left end inlet, reach the left end of the hollow screw shaft tube 8, and then exit from the side wall opening of the conduit 11. It is wound around the outer wall of the support tube 12, and after winding, it is introduced into the conduit 11 from the side wall opening on the right side of the support tube 12, then bent to the left and exited from the left end of the conduit 11.

[0052] In a preferred embodiment, the feed inlet 23 is located above one end of the housing 6, and the discharge outlet 24 is located below the other end of the housing 6.

[0053] In a preferred embodiment, the outer surface of the housing 6 is provided with a heating device, which can be heated by a half-pipe, a jacket, etc. (using hot water, steam, or heat transfer oil, etc.) or by setting an electric heating element.

[0054] In one specific embodiment, the hollow spiral shaft tube 8 is a single tube, coaxial with the housing 6.

[0055] In one specific embodiment, there are two hollow spiral shaft tubes 8, such as... Figure 3 As shown, two hollow spiral shaft tubes 8 are interlocked (or not interlocked) and placed parallel to each other in the housing 6. The number of hollow spiral shaft tubes 8 can also be four, and each pair of shafts can be arranged in an interlocking or non-interlocking manner.

[0056] In one specific embodiment, the heating element 5 is U-shaped, straight, or spiral.

[0057] In one specific embodiment, the housing 6 is arranged horizontally or at an angle.

[0058] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the claims of this utility model.

Claims

1. An apparatus for heating and conveying material, characterized by, include: A screw feeder includes a housing with an inlet and an outlet. A left end seat and a right end seat for sealing the housing are located at the left and right ends of the housing, respectively. A hollow screw shaft tube is located inside the housing, with screw blades on its outer surface. A conduit is located inside the hollow screw shaft tube, and a support tube is located outside the conduit. End plates for sealing and fixing the support tube are located at both ends of the support tube. A heating element is wound around the outer surface of the support tube, and the inlet and outlet ends of the heating element are connected to an external power source through the conduit. The shaft head includes a left shaft head and a right shaft head. The left shaft head passes through the left end seat of the housing and connects to the left end of the hollow spiral shaft tube. The right shaft head passes through the right end seat of the housing and connects to the right end of the hollow spiral shaft tube. The shaft seal includes a left shaft seal and a right shaft seal. The left shaft seal is sleeved on the left shaft head and close to the left end seat of the housing, and the right shaft seal is sleeved on the right shaft head and close to the right end seat of the housing. The bearing housing includes a left bearing housing fitted onto the left shaft head and a right bearing housing fitted onto the right shaft head; A transmission mechanism, which is connected to the shaft head.

2. The apparatus for heating and conveying materials according to claim 1, characterized in that, The outer surface of the shell is equipped with a heating device.

3. The apparatus for heating and conveying material of claim 1, wherein, The hollow spiral shaft tube can be one or more.

4. The apparatus for heating and conveying materials according to claim 1, characterized in that, There are two hollow spiral shaft tubes.

5. The apparatus for heating and conveying materials according to claim 1, characterized in that, The heating element is U-shaped, straight, or spiral.

6. The apparatus for heating and conveying materials according to claim 1, characterized in that, The housing is set horizontally or at an angle.

Images