Electric heating scraper dryer

Abstract

The utility model discloses an electric heating scraper drying machine which comprises a machine frame, a roller and a main shaft, the main shaft coaxially penetrates through the axis of the roller, the main shaft is rotatably arranged on the top side of the machine frame, the bottom side of the roller extends to the inner side of the machine frame, a conducting ring is coaxially and rotatably arranged on the outer side of the main shaft, and the conducting ring is arranged on the outer side of the main shaft. A plurality of heating pipes extending transversely are arranged in the roller around the main shaft, and a temperature sensing probe transversely penetrates into the middle of the roller. The utility model has the beneficial effects that the heating pipes which are annularly distributed are arranged in the roller, and the circumferential wall of the roller is directly heated in an electric heating manner, so that the waste problem of high energy consumption is solved, and energy is saved; the conductive ring serves as a power supply component, power can be supplied to the heating pipe and the temperature sensing probe in the rotating process of the roller, the equipment is simple in structure, convenient to maintain and low in cost, the heating state is conveniently adjusted according to the temperature of the roller, and different materials are dried.

Description

Technical Field

[0001] The utility model relates to the field of material dryers, in particular to an electric heating scraper dryer. Background Art

[0002] The scraper drum dryer is a drying equipment widely used in various industries. The equipment uses a hollow drum as a heat transfer medium, with a heat source inside. The liquid material is adhered to the drum and heated to achieve drying. Then the scraper scrapes the material that follows the drum to complete the drying process. At present, most drum dryers on the market use steam as a heat source, pumping steam into the drum for drying. An external steam generator is required, which has high energy consumption, complex equipment structure, easy steam leakage, and cumbersome maintenance. Others use thermal oil as a heating medium, use electricity to heat the thermal oil and then heat the drum. The process is complicated and energy consumption is large. Utility Model Content

[0003] The purpose of the utility model is to provide an electric heating scraper dryer in order to solve the above-mentioned problem. A ring-shaped heating tube is arranged inside the drum to directly heat the circumferential wall of the drum by electric heating, thereby improving the problem of high energy consumption and saving energy. See the following for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides an electric heating scraper dryer, comprising a frame, a roller and a main shaft, wherein the main shaft coaxially penetrates the axis of the roller, the main shaft is rotatably arranged on the top side of the frame, the bottom side of the roller extends to the inside of the frame, a conductive ring is coaxially rotatably arranged on the outside of the main shaft, a plurality of laterally extending heating tubes are arranged inside the roller around the main shaft, a temperature sensing probe is laterally penetrated into the middle of the roller, and the temperature sensing probe and the plurality of conductive rings are electrically connected to the heating tube.

[0006] When using the above-mentioned electric heating scraper dryer, the liquid material to be dried is introduced into the liquid tank, the main shaft is supported by the driving part to drive the drum to rotate, and the bottom side of the drum rotates through the liquid tank, so that the liquid material adhered to the outer side of the drum wall rotates synchronously, and the drum wall is heated by the heating tube inside the drum to achieve the drying of the outer material, and the real-time temperature in the drum is detected by the temperature sensing probe, so that the user can adjust the heating state of the heating tube according to the detected temperature; the liquid material brought up by the rotation of the drum is heated and dried by the drum wall, and is separated and scraped by the scraper on the outside during the rotation of the drum to achieve the material drying process.

[0007] Preferably, the frame is a C-shaped frame with an opening facing upward, a mounting frame is provided on the outer side of the frame, and a driving part for driving the main shaft to rotate is fixed on the top side of the mounting frame.

[0008] Preferably, the driving part is a motor fixed to the top side of the mounting frame by bolts, the output end of the motor is provided with a reducer, the output end of the reducer is provided with a driving sprocket, and the outer end of the main shaft is fixed with a transmission sprocket connected to the driving sprocket through a chain drive.

[0009] Preferably, two groups of bearing seats supporting the rotation of the two ends of the main shaft are horizontally arranged on the top of the frame, and the roller includes a cylindrical wall coaxially sleeved on the outside of the main shaft, and end covers are fixed at both ends of the cylinder wall. The main shaft horizontally passes through the center of the end cover, and the main shaft is fixedly connected to the end cover.

[0010] Preferably, the heating tube and the temperature sensing probe both penetrate the end cover transversely and extend into the interior of the cylinder wall, and the heating tube has an internal electric heating body.

[0011] Preferably, a liquid tank is provided inside the frame, and the liquid tank is a frame structure with an open top and a closed bottom, and the bottom side of the cylinder wall vertically extends into the inner side of the liquid tank.

[0012] Preferably, a top cover is provided on the frame above the drum, and the top cover is a hollow structure in the shape of a hopper, and both sides of the bottom of the top cover are vertically fixed to the top side of the frame.

[0013] Preferably, a scraper is provided above the frame outside the drum, and the blade of the scraper extends obliquely along the tangent direction of the outer circumference of the drum.

[0014] The beneficial effects are as follows: the utility model provides annularly distributed heating tubes inside the drum, directly heats the circumferential wall of the drum by electric heating, thereby improving the problem of high energy consumption and waste, and saving energy;

[0015] The conductive ring is used as the power supply component to supply power to the heating tube and the temperature sensing probe during the rotation of the drum. The equipment has a simple structure, convenient maintenance, low cost, and is convenient for adjusting the heating state according to the drum temperature to meet the drying needs of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the main structural diagram of the utility model;

[0018] Figure 2It is a front cross-sectional view of the utility model;

[0019] Figure 3 It is a right view structural diagram of the roller of the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Frame; 101. Liquid tank; 2. Mounting frame; 3. Main shaft; 301. Drive sprocket; 4. Roller; 401. Drum wall; 402. End cover; 5. Conductive ring; 6. Heating tube; 7. Temperature sensor; 8. Driving unit; 801. Drive sprocket; 9. Scraper; 10. Top cover; 11. Bearing seat. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3 As shown, the utility model provides an electric heating scraper dryer, including a frame 1, a drum 4 and a main shaft 3, the main shaft 3 coaxially passes through the axis of the drum 4, the main shaft 3 is rotatably arranged on the top side of the frame 1, and the bottom side of the drum 4 extends to the inner side of the frame 1. The drum 4 serves as an adhesion drying structure for liquid materials, and the frame 1 supports the drum 4 to rotate to achieve adhesion drying of the material, a conductive ring 5 is coaxially rotatably arranged on the outer side of the main shaft 3, a plurality of laterally extending heating tubes 6 are arranged around the main shaft 3 inside the drum 4, a temperature sensing probe 7 is laterally penetrated in the middle of the drum 4 to reflect the internal temperature of the drum 4 and judge whether the drum 4 reaches the set temperature requirement for material drying, and the temperature sensing probe 7 and the plurality of conductive rings 5 ​​are electrically connected to the heating tube 6 to ensure that the conductive ring 5 can be used as a power supply component during the rotation of the drum 4.

[0024] As an optional embodiment, the frame 1 is a C-shaped frame with an opening facing upward, and a mounting frame 2 is arranged on the outside of the frame 1. A driving unit 8 for driving the main shaft 3 to rotate is fixed on the top side of the mounting frame 2. The driving unit 8 is a motor fixed to the top side of the mounting frame 2 by bolts, and a reducer is arranged at the output end of the motor. A driving sprocket 801 is arranged at the output end of the reducer, and a driving sprocket 301 connected to the driving sprocket 801 by a chain transmission is fixed at the outer end of the main shaft 3, ensuring that the driving unit 8 can drive the main shaft 3 and the drum 4 to rotate, and two groups of bearing seats 11 supporting the rotation of both ends of the main shaft 3 are arranged horizontally on the top of the frame 1, and the drum 4 includes a cylindrical barrel wall 401 coaxially sleeved on the outside of the main shaft 3, and end covers 402 are fixed at both ends of the barrel wall 401, and the main shaft 3 passes through the center of the end cover 402 horizontally, and the main shaft 3 is fixedly connected to the end cover 402, ensuring that the interior of the drum 4 is a closed space to improve the problem of heat loss;

[0025] The heating tube 6 and the temperature sensing probe 7 both penetrate the end cover 402 transversely and extend into the cylinder wall 401. The heating tube 6 is equipped with an electric heating body, which is a heating wire or a heating rod, to ensure that the heating tube 6 can heat the cylinder 4.

[0026] A liquid tank 101 is provided inside the frame 1 to contain liquid materials that need to be heated and dried. The liquid tank 101 is a frame structure with an open top and a closed bottom. The bottom side of the cylinder wall 401 vertically extends into the inner side of the liquid tank 101.

[0027] A top cover 10 is provided on the frame 1 above the drum 4. The top cover 10 is a hollow structure in the shape of a hopper. Both sides of the bottom of the top cover 10 are vertically fixed to the top side of the frame 1 so that the steam generated by the volatilization of the liquid material during the drying process can be collected through the top cover 10. A scraper 9 is provided above the frame 1 outside the drum 4. The blade of the scraper 9 extends obliquely along the tangent direction of the outer circumference of the drum 4 to ensure that the scraper 9 can scrape off the material remaining on the outside of the drum 4 after drying to remove the material.

[0028] With the above structure, when in use, the liquid material to be dried is introduced into the liquid tank 101, and the main shaft 3 is supported by the driving part 8 to drive the drum 4 to rotate. The bottom side of the drum 4 rotates through the liquid tank 101, so that the liquid material adhered to the outer side of the drum wall 401 of the drum 4 rotates synchronously, and the drum wall 401 is heated by the heating tube 6 inside the drum 4 to achieve the drying of the outer material, and the real-time temperature in the drum 4 is detected by the temperature sensing probe 7, so that the user can adjust the heating state of the heating tube 6 according to the detected temperature; the liquid material brought up by the rotation of the drum 4 is heated and dried by the drum wall 401, and is separated and scraped by the scraper 9 on the outside during the rotation of the drum 4 to achieve the material drying process;

[0029] By arranging the heating tubes 6 distributed in an annular shape inside the drum 4, the circumferential wall of the drum 4 is directly heated by electric heating, thereby improving the problem of high energy consumption and waste, and saving energy;

[0030] The conductive ring 5 is used as a power supply component to supply power to the heating tube 6 and the temperature sensing probe 7 during the rotation of the drum 4. The equipment has a simple structure, convenient maintenance, and low cost. It is convenient to adjust the heating state according to the temperature of the drum 4 to meet the drying needs of different materials.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An electrically heated scraper dryer, comprising a frame (1), a drum (4) and a main shaft (3), wherein the main shaft (3) coaxially passes through the axis of the drum (4), the main shaft (3) is rotatably arranged on the top side of the frame (1), and the bottom side of the drum (4) extends to the inner side of the frame (1), characterized in that: A conductive ring (5) is coaxially rotatably arranged on the outer side of the main shaft (3), a plurality of transversely extending heating tubes (6) are arranged inside the roller (4) and surround the main shaft (3), a temperature sensing probe (7) is laterally inserted into the middle of the roller (4), and the temperature sensing probe (7) and the plurality of conductive rings (5) are electrically connected to the heating tube (6).

2. The electrically heated scraper dryer according to claim 1, characterized in that: The frame (1) is a C-shaped frame with an opening facing upwards. A mounting frame (2) is arranged on the outside of the frame (1). A driving part (8) for driving the main shaft (3) to rotate is fixed on the top side of the mounting frame (2).

3. The electrically heated scraper dryer according to claim 2, characterized in that: The driving part (8) is a motor fixed to the top side of the mounting frame (2) by bolts, the output end of the motor is provided with a reducer, the output end of the reducer is provided with a driving sprocket (801), and the outer end of the main shaft (3) is fixed with a driving sprocket (301) connected to the driving sprocket (801) by chain transmission.

4. The electrically heated scraper dryer according to claim 3, characterized in that: Two groups of bearing seats (11) are transversely arranged on the top of the frame (1) to support the rotation of the two ends of the main shaft (3); the roller (4) comprises a cylindrical wall (401) coaxially sleeved on the outside of the main shaft (3); end covers (402) are fixed at both ends of the wall (401); the main shaft (3) transversely passes through the center of the end cover (402), and the main shaft (3) is fixedly connected to the end cover (402).

5. The electrically heated scraper dryer according to claim 4, characterized in that: The heating tube (6) and the temperature sensing probe (7) both transversely penetrate the end cover (402) and extend into the interior of the cylinder wall (401), and the heating tube (6) has an electric heating body built in.

6. The electrically heated scraper dryer according to claim 4, characterized in that: A liquid tank (101) is arranged inside the frame (1), and the liquid tank (101) is a frame structure with an open top and a closed bottom, and the bottom side of the cylinder wall (401) vertically extends into the inside of the liquid tank (101).

7. The electrically heated scraper dryer according to claim 2, characterized in that: A top cover (10) is provided on the frame (1) above the drum (4); the top cover (10) is a hollow structure in the shape of a hopper, and both sides of the bottom of the top cover (10) are vertically fixed to the top side of the frame (1).

8. The electrically heated scraper dryer according to claim 7, characterized in that: A scraper (9) is arranged above the frame (1) outside the roller (4), and the blade of the scraper (9) extends obliquely along the tangent direction of the outer circumference of the roller (4).

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