A high-temperature medium impurity efficient cleaning device

Abstract

The scheme discloses a high-temperature medium impurity efficient cleaning device in the field of chemical equipment, which comprises two symmetrical limiting mechanisms, the limiting mechanism comprises a lifting lug, the lifting lug is connected with a lifting steel rope, the lifting lug is hinged with two short connecting rods, the short connecting rods are respectively hinged with two long connecting rods, the long connecting rods are hinged in the middle, the long connecting rods are all hinged with limiting rods, the limiting rods are all connected with placing steel ropes, and the two symmetrical long connecting rods are fixedly connected with clamping plates. The device eliminates problems such as blockage of a suction inlet of a conveying pump and abrasion of an impeller, avoids dry burning accidents of a main body heating component caused by insufficient flow of a molten salt pump, guarantees continuous operation of overall production, is low in tool manufacturing investment cost and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical equipment field especially relates to a high temperature medium impurity high -efficient cleaning device. BACKGROUND

[0002] The molten salt heating pipeline technology is an important process in the bayer process of alumina production, the heating source of the eleven-stage sleeve in the technology is provided by a molten salt furnace, the medium used for heating of the molten salt furnace is a mixture of inorganic nitrate, and the process flow mainly comprises the following steps: the high-temperature heat-carrying molten salt is pumped by a molten salt pump to the molten salt furnace and heated to qualified temperature, then is sent to the eleven-stage sleeve for heating and dissolving the ore slurry, and the molten salt after absorbing heat of the ore slurry is returned to the molten salt tank for recycling and heating the dissolving system.

[0003] 1. During the operation of the molten salt pump, the metal foreign matters or other impurities accumulated in the molten salt tank will block part of the suction inlet of the pump, resulting in insufficient flow of the molten salt pump.

[0004] 2. The impurities accumulated in the molten salt tank will cause certain wear to the impeller of the molten salt pump, affecting the safe and stable operation of the equipment, and affecting the purity and quality of the molten salt. CONTENT OF THE UTILITY MODEL

[0005] The utility model intends to provide a high temperature medium impurity high -efficient cleaning device to solve the problem that the existing molten salt heating pipeline produces impurities and affects the system operation.

[0006] The high temperature medium impurity high -efficient cleaning device comprises two symmetrical limiting mechanisms, the limiting mechanism comprises a lifting lug, the lifting lug is connected with a lifting steel rope, the lifting lug is hinged with two short connecting rods, the short connecting rods are respectively hinged with two long connecting rods, the middle parts of the long connecting rods are hinged, the long connecting rods are respectively hinged with limiting rods, the limiting rods are connected with the placing steel ropes, and the two symmetrical long connecting rods are fixedly connected with a clamping plate.

[0007] The working principle and beneficial effects of the scheme are as follows: in use, the whole device is placed in the position of the molten salt tank where the sundries need to be cleaned, and then the lifting steel rope is pulled up, the whole device falls down under the action of gravity, the multiple hinge points rotate, the positions where the short connecting rods and the long connecting rods are hinged are close to each other, finally the two clamping plates are close to each other to clamp the metal sundries and impurities, and then the lifting steel rope is pulled up to clamp out the metal sundries and impurities together, so that the metal and sundries in the molten salt tank are cleaned, and the operation of the molten salt pump is ensured. The impurities accumulated at the bottom of the molten salt tank are grabbed, the cleaning operation in the high-temperature molten salt special environment is realized under the condition of low investment, the influence of the metal impurities in the molten salt tank on the operation of the molten salt pump is solved, the stability and reliability of the equipment operation are improved, and the purity and quality of the molten salt are improved.

[0008] Further, the thickness of the clamping plates gradually decreases from top to bottom. This setting is conducive to clamping and grabbing metal and impurities.

[0009] Further, the bottoms of the two clamping plates are outwardly inclined. In this way, the ends of the two clamping plates can be closed together after the clamping plates are close to each other, and the metal and impurities can fall off.

[0010] Further, the hinge shafts are connected to the positions where the two lifting lugs and the short connecting rods are hinged. The hinge shafts make the connection of the two limiting mechanisms more stable.

[0011] Further, the connecting round steel is connected between the short connecting rods on the two limiting mechanisms and is located at the hinge joint of the short connecting rods and the long connecting rods.

[0012] Further, the lifting steel rope and the placing steel rope are connected with the electric hoist that drives the lifting and lowering of the lifting steel rope. The device is equipped with the electric hoist traction power device to realize mechanized operation and precise control of the movement track of the grab bucket, improve the accuracy and efficiency of cleaning.

[0013] Further, the cleaning device is made of 310S heat-resistant material. The device can operate in the special working condition of high-temperature molten salt, overcome the influence of high temperature on the equipment, and is made of high-temperature-resistant material to withstand the erosion and heat radiation of high-temperature molten salt, so as to ensure the use reliability of the tool under 300 DEG C high-temperature medium. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the high-temperature medium impurity efficient cleaning device.

[0015] Figure 2 It is a structural schematic view when the device is clamped. DETAILED DESCRIPTION

[0016] The specific embodiments are described in further detail below:

[0017] The reference signs in the drawings of the specification include: electric hoist 1, lifting steel wire 2, placing steel wire 3, lifting lug 4, short connecting rod 5, long connecting rod 6, limiting rod 7, clamping plate 8, hinge shaft 9, connecting round steel 10, limiting block 11.

[0018] The embodiment is basically as shown in the accompanying drawings Figure 1 and Figure 2 : a high-temperature medium impurity efficient cleaning device, comprising two symmetrical limiting mechanisms, the limiting mechanism comprises a lifting lug 4, the lifting lug 4 is connected with a lifting steel wire 2, the lifting lug 4 is hinged with two short connecting rods 5, the lifting lug 4 and the short connecting rod 5 hinged position of two different limiting mechanisms are connected with a hinge shaft 9, the short connecting rod 5 is respectively hinged with two long connecting rods 6, the long connecting rod 6 is hinged in the middle, the short connecting rod 5 between the two limiting mechanisms is connected with a connecting round steel 10, the connecting round steel 10 is located at the hinge of the short connecting rod 5 and the long connecting rod 6, the long connecting rod 6 is hinged with a limiting rod 7, and the limiting rod 7 is connected with a placing steel wire 3; the lifting steel wire 2 and the placing steel wire 3 are lifted by the electric hoist 1;

[0019] The two symmetrical long connecting rods 6 are fixedly connected with clamping plates 8, the thickness of the clamping plates 8 gradually decreases from top to bottom, and the bottoms of the two clamping plates 8 are outwardly inclined.

[0020] The cleaning device is made of 310S heat-resistant material;

[0021] The long connecting rod 6 is provided with a limiting block 11, and the limiting block 11 is used to avoid that the opening and closing angle of the long connecting rod 6 is too large.

[0022] In use, the placing steel wire 3 is connected with the electric hoist 1, the electric hoist 1 is lowered to lift the placing steel wire 3, the whole device is placed in the position where the molten salt tank needs to be cleaned, then the lifting steel wire 2 is fixed with the electric hoist 1, the placing steel wire 3 is removed, and the lifting steel wire 2 is pulled up, because the whole device is very large and heavy, the whole device falls downward under the action of gravity without force, multiple hinge points rotate, the positions where the short connecting rod 5 and the long connecting rod 6 are hinged are close to each other, and finally drive the two clamping plates 8 to be close to each other to clamp the metal foreign matter and impurities, and then the lifting steel wire 2 is pulled up to clamp the clamped metal foreign matter and impurities together, so as to clean the metal and foreign matter of the molten salt tank and ensure the operation of the molten salt pump. By grabbing the impurities accumulated at the bottom of the molten salt tank, the cleaning operation in the high-temperature molten salt special environment is realized under the condition of little investment, the influence of the metal impurities in the molten salt tank on the operation of the molten salt pump is solved, the stability and reliability of the equipment operation are improved, and the purity and quality of the molten salt are improved.

[0023] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A high-temperature medium impurity efficient cleaning device, characterized in that: Two symmetrical limiting mechanisms are included, the limiting mechanism includes a lifting lug, the lifting lug is connected with a lifting steel rope, the lifting lug is hinged with two short connecting rods, the short connecting rods are respectively hinged with two long connecting rods, the middle part of the long connecting rods is hinged, the long connecting rods are respectively hinged with a limiting rod, the limiting rods are connected with a placing steel rope, and the two symmetrical long connecting rods are fixedly connected with a clamping plate.

2. The high-temperature medium impurity efficient cleaning device according to claim 1, characterized in that: The thickness of the clamping plate gradually decreases from top to bottom.

3. The device for efficiently cleaning high-temperature medium impurities according to claim 2, characterized in that: The bottom of the two clamping plates is outwardly inclined.

4. The device for efficient cleaning of high-temperature medium impurities according to claim 3, characterized in that: The position where the two lifting lugs are hinged with the short connecting rods is connected with a hinge shaft.

5. The device for efficient cleaning of high-temperature medium impurities according to claim 4, characterized in that: The connecting round steel is connected between the short connecting rods of the two limiting mechanisms and is located at the hinge position of the short connecting rod and the long connecting rod.

6. The device for efficient cleaning of high-temperature medium impurities according to claim 5, characterized by the fact that: The lifting steel rope and the placing steel rope are connected with an electric hoist for driving the lifting.

7. The device according to claim 6, wherein: The cleaning device is made of 310S heat-resistant material.

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