CN201000258Y - paddle heater - Google Patents

Abstract

The utility model discloses a paddle type heater, which comprises a base and a cylinder body arranged on the base, wherein a hydrofuge orifice is arranged on the cylinder body, a feed head and a discharge hole respectively arranged on both ends of the cylinder body are arranged side by side on two hollow axle inside the cylinder body, the both ends of the hollow axle extend out of the two ends of the cylinder body, one end is an inlet of the heat carrier, the other end is an outlet of the heat carrier, and the driving device of the drive hollow axle rotation is arranged on the hollow paddle of the hollow axle. The utility model is characterized in that an included angle is in the plane of the cylinder body and the base, the feed end is higher than the end of the discharge hole, a clamping sleeve is arranged at the periphery of the cylinder body, the interior of the clamping sleeve is divided into units not being mutually connected by the baffle plate between the cylinder body and the clamping sleeve, and an inlet of the heat carrier and an outlet of the heat carrier are respectively arranged on each unit. The paddle type heater works more stably, the thermal efficiency is higher and the service life is longer.

Description

paddle heater

technical field

The utility model relates to a material heating and drying equipment, in particular to a paddle heater.

Background technique

The heater is mainly used for heating or drying of materials, such as heating of urea and ammonium nitrate in the production of high-tower compound fertilizers, preheating before calcination in the production of soda ash, and heating and drying of materials in other industries.

The existing paddle heaters have the problems of insufficient thermal efficiency, wear life of heated materials on the surface of the paddle, and easy damage.

Contents of the invention

The purpose of the utility model is to provide a paddle heater with high thermal efficiency in view of the deficiencies in the prior art.

The technical scheme of the utility model is:

A paddle-type heater, including a base, a cylinder installed on the base, a moisture discharge port is opened on the cylinder, a material inlet and a discharge port are respectively arranged at both ends of the cylinder, and are installed side by side inside the cylinder Two hollow shafts, the two ends of the hollow shaft extend out of the two ends of the cylinder body, one end is the heat carrier inlet, the other end is the heat carrier outlet, the driving device that drives the hollow shaft to rotate, the hollow paddle installed on the hollow shaft, its It is characterized in that there is an included angle between the cylinder body and the plane where the base is located, the end of the feed port is higher than the end of the discharge port, a jacket is arranged on the periphery of the cylinder body, and the baffle between the cylinder body and the jacket seals the inner part of the jacket It is a unit that is not connected to each other, and each unit is equipped with a heat carrier inlet and outlet.

The additional technical scheme of the utility model is:

A partition is arranged between the input pipe and the output pipe inside the hollow paddle, and the partition cooperates with the inner wall of the hollow paddle to guide the flow direction of the heat carrier.

Spiral blades are also arranged around the hollow paddle.

A blade protection sheet is also provided on every other hollow blade, and one of the corresponding hollow blades on the two hollow shafts is provided with a blade protection sheet.

The rotation phase difference of the hollow paddles at corresponding positions on the two hollow shafts is 90°, and the two hollow shafts rotate in opposite directions.

A process hole is provided on the jacket, and the inner wall of the hole is extended and supported on the outer wall of the cylinder.

Discharge ports can be added on both sides of the above-mentioned cylinder body.

The beneficial effects of the utility model are that the paddle heater operates more stably, has higher thermal efficiency and longer service life.

Description of drawings

Fig. 1 is the front view of the paddle heater of the present invention.

Fig. 2 is a partial sectional view of the paddle heater shown in Fig. 1 .

Fig. 3 is a schematic diagram of the internal structure of the hollow paddle.

Among them, reference numerals: 1 is the motor, 2 is the reducer, 3 is the heat carrier outlet on the jacket, 4 is the discharge port, 5 is the heat carrier outlet, 6 is the process hole, 7 is the cylinder body, and 8 is the base , 9 is the hollow shaft, 10 is the hollow paddle, 11 is the feed inlet, 12 is the transmission device, 13 is the heat carrier inlet, 14 is the jacket, 15 is the heat carrier inlet on the jacket, 16 is the spiral piece, 17 It is an input pipe, 18 is a dividing plate, 19 is an output pipe, and 20 is a baffle plate.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

The specific embodiment of the utility model, as shown in Figure 1 and Figure 2, a paddle heater, including a base 8, a cylinder 7 installed on the base 8, a moisture discharge port is opened on the cylinder 7, The feed port 11 and the discharge port 4 are respectively arranged at both ends of the cylinder body 7; two hollow shafts 9 are installed side by side inside the cylinder body 7, and the two ends of the hollow shaft 9 extend out of the two ends of the cylinder body 7, and one end is a heat carrier Inlet 13, the other end is the heat carrier outlet 5; the motor 1 drives the hollow shaft 9 to rotate through the reducer 2 and the transmission device, wherein the motor is preferably a frequency conversion speed regulating motor; the hollow paddle 10 installed on the hollow shaft 9; the cylinder body 7 and There is an included angle between the planes where the base 8 is located, the end of the feed port 11 is higher than the end of the discharge port 4, and a jacket 14 is arranged on the periphery of the cylinder body 7, and the baffle plate 20 between the cylinder body 7 and the jacket 14 seals the jacket The interior of 7 is divided into units that are not connected to each other, and each unit is equipped with heat carrier inlet and outlet; there is a process hole 6 on the jacket, and the inner wall of the process hole 6 is extended and supported on the outer wall of the cylinder body 7, increasing the cylinder body. The point of contact between the body 7 and the jacket 14.

In this embodiment, the segmented design of the jacket 14 is conducive to improving the heat exchange efficiency, and the inclination of the cylinder 7 is conducive to the flow of materials.

Things to pay attention to during the design process: the wall thickness of the hollow paddle 10 should ensure that it meets the requirements of the internal steam pressure; heat-resistant parts should be used for seals and bearing parts; the size of the discharge port 4 should be determined according to the size of the heated material Certainly.

In the above-mentioned embodiments, a wedge-shaped hollow hollow paddle 10 may be used. The hollow paddles 10 on the two hollow shafts 9 are carefully arranged by making full use of the characteristics of the wedge-shaped paddles, so that the relatively moving hollow paddles 10 occupy the smallest space and the smallest axial dimension. Compared with other equipment with the same heat exchange area, the average heat exchange area per unit volume is 1-2 times higher.

Concrete embodiment 2 of the present utility model, its overall structure is similar to embodiment 1, and difference is: as shown in Figure 3, between the input pipe 17 and the output pipe 19 inside hollow paddle 10, be provided with dividing plate 18. The partition plate 18 cooperates with the inner wall of the hollow paddle 10 to guide the flow direction of the cooling water, so that the flow channel is increased and the heat exchange effect is enhanced.

In this embodiment, a screw 16 can also be arranged around the hollow paddle 10, which can increase the axial travel speed of the material, improve the processing capacity of the equipment, and protect the paddle surface.

The specific embodiment 3 of the present utility model, its overall structure is similar to embodiment 1, the difference is: the rotation phase difference of the hollow blade 10 of the corresponding position on the two hollow shafts 9 is 90 °, the two hollow shafts rotate The direction is opposite; a blade protection sheet is also provided on the hollow blades 10 of even stages, and one of the hollow blades 10 at corresponding positions on the two hollow shafts 9 is provided with a blade protection sheet. Adding the paddle protection sheet can reduce the wear of the material on the paddle.

In order to facilitate the discharge of materials during power outages or stuffy cars, and to avoid damage to the parts during startup due to overload, discharge ports 4 can also be added along both sides of the cylinder body 7 in the above embodiment.

Claims (9)

1. A paddle type heater, comprising a base (8), a cylinder (7) installed on the base (8), with a moisture outlet on the cylinder (7), which is respectively arranged on the cylinder (7) ) feed port (11) and discharge port (4) at both ends, two hollow shafts (9) installed side by side inside the cylinder body (7), the two ends of the hollow shaft (9) extend out of the cylinder body (7) Two ends, one end is the heat carrier inlet (13), the other end is the heat carrier outlet (5), the driving device that drives the hollow shaft (9) to rotate, the hollow paddle (10) that is installed on the hollow shaft (9), its It is characterized in that there is an included angle between the cylinder body (7) and the plane where the base (8) is located, the end of the feed port (11) is higher than the end of the discharge port (4), and a jacket ( 14), the baffle plate (20) between the cylinder block (7) and the jacket (14) divides the inside of the jacket (7) into disconnected units, and each unit is provided with a heat carrier inlet and outlet. 2. The paddle heater according to claim 1, characterized in that, a partition (18) is arranged between the input pipe (17) and the output pipe (19) inside the hollow paddle (10), and the partition (18) Cooperate with the inner wall of the hollow paddle to guide the flow direction of the heat carrier. 3. The paddle heater according to claim 1 or 2, characterized in that a helical piece (16) is further provided around the hollow paddle (10). 4. The paddle heater according to claim 3, characterized in that, the spaced hollow paddles (10) are also provided with paddle protection sheets, and the hollow paddles at the corresponding positions on the two hollow shafts (9) One of (10) is provided with a blade protection sheet. 5. The paddle heater according to claim 4, characterized in that the rotation phase difference of the hollow paddles (10) at the corresponding positions on the two hollow shafts (9) is 90°, and the two hollow shafts (9) The direction of rotation is reversed. 6. The paddle heater according to claim 5, characterized in that a process hole (6) is provided on the jacket (14), and the inner wall of the hole is extended and supported on the outer wall of the cylinder (7). 7. The paddle heater according to claim 3, characterized in that, there are additional discharge ports (4) along both sides of the cylinder body (7). 8. The paddle-type heater according to claim 1, characterized in that the longitudinal section of the hollow paddle (10) along the radial direction is wedge-shaped. 9 . The paddle heater according to claim 1 , wherein the driving device is a variable frequency speed regulating motor.

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