Desilting device for water sealing tank of annular cooler

Abstract

The present invention discloses a desilting device for a water sealing groove of an annular cooler. The device comprises a machine base and a driving mechanism placed on the machine base. The driving mechanism is provided with a desilting impeller. The desilting impeller comprises a shaft sleeve and blade teeth. The blade teeth comprise a support rod and a scraping bucket. A plurality of support rods are radially and evenly distributed on the outer circumference of the shaft sleeve. The scraping bucket is placed on the outer end of the support rod. The bucket opening of the scraping bucket faces the rotation direction of the desilting impeller. The scraping bucket comprises an arc-shaped bucket top plate, a bucket bottom plate, an outer plate, an inner plate and a rear bucket plate. The outer end of the bucket bottom plate is inclined toward the center of the shaft sleeve. The plate surface of the bucket bottom plate is arranged tangentially. A discharge port is provided between the outer plate and the outer end of the bucket bottom plate. The discharge port is located outside the outer end surface of the shaft sleeve. A baffle is provided on the inner edge of the bucket opening. A circular mud guard plate is fixed to the outer end of the shaft sleeve. The mud guard plate is located below the bucket bottom plate. The present invention has a simple structure, reliable operation, more thorough and clean desilting, and high work efficiency.

Description

Technical Field

[0001] The invention relates to an annular cooler, in particular to a silting device for a water sealing groove of an annular cooler. Background Art

[0002] Currently, domestic iron and steel plants generally use ring coolers to cool sintered materials. The upper seal of the ring cooler is generally a water seal. A plug-in plate on the upper cover of the ring cooler inserts into a water trough to form a water seal. This seal provides excellent sealing and high waste heat power generation efficiency. During actual operation, powdered particles and dust from the sintered ore fall into the water trough. Over time, a large amount of dust accumulates at the bottom of the trough, forming a sludge. When the sludge reaches or even exceeds the height of the plug-in plate, the trough plug-in plate creates resistance to the ring cooler, which can cause serious production accidents.

[0003] Cleaning the accumulated dirt inside the water tank of the annular cooler relies entirely on manual cleaning, which is time-consuming and labor-intensive. Manual cleaning of the accumulated dirt will lead to many problems. The first is safety. When the annular cooler is running, workers need to stand on a platform at the same height as the water tank, and the distance from the running annular cooler is too close, which poses a great safety hazard. The second is that if workers become lazy and fail to clean in time, the accumulated dirt will increase, which will bring resistance to the operation of the equipment, and the large resistance will cause shutdown.

[0004] The Chinese utility model patent with authorization announcement number CN214470125U discloses a silting device for a water seal tank of an annular cooler. The cleaning and unloading hopper of the invention is composed of a collecting hopper, a connecting pipe and a unloading chute, and its efficiency is low. Summary of the Invention

[0005] The present invention aims to solve the above technical problems and provides a dredging device for the water sealing groove of an annular cooler to improve the efficiency of dredging the water sealing groove.

[0006] The present invention solves the technical problem and adopts the following technical solution:

[0007] A desilting device for a water sealing tank of an annular cooler comprises a machine base and a driving mechanism placed on the machine base.

[0008] The driving mechanism is installed with a mud removing impeller, which includes a shaft sleeve, blade teeth, and the blade teeth include a support rod and a mud scraping bucket. A plurality of support rods are radially evenly distributed on the outer circumference of the shaft sleeve, and the mud scraping bucket is placed on the outer end of the support rod, and the bucket mouth of the mud scraping bucket faces the rotation direction of the mud removing impeller; the mud scraping bucket includes an arc-shaped bucket top plate, a bucket bottom plate, an outer plate and an inner plate, the outer end of the bucket bottom plate is inclined toward the center of the shaft sleeve, the plate surface of the bucket bottom plate is arranged tangentially, and a discharge port is opened between the outer end of the outer plate and the bucket bottom plate, and the discharge port is located outside the outer end surface of the shaft sleeve; the outer end of the shaft sleeve is fixedly connected to a circular mud guard plate, and the mud guard plate is located below the bucket bottom plate.

[0009] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0010] The structure is simple and the operation is reliable. The scraper bucket of the mud removal impeller directly scrapes the silt in the water tank. The silt is discharged through the discharge port on the outside of the scraper bucket and unloaded into the railing of the ring cooler trolley. The silt is removed more thoroughly and cleanly, and the work efficiency is high.

[0011] Furthermore, the optimization scheme of the present invention is:

[0012] The support rod is an integral structure with an H-shaped cross section. A rib is provided between the side of the support rod opposite to the rotation direction and the shaft sleeve.

[0013] A mud guard is provided between the outer end of the bucket bottom plate and the root of the mud guard plate.

[0014] The machine base is a split structure, including a lower machine base, an upper machine base, a sleeve, a guide column and a lifting drive component. The four corners of the top surface of the lower machine base are fixedly connected to the vertical guide sleeve. The guide column is inserted into the sleeve and is slidably connected to the guide sleeve. The upper end of the guide column is fixedly connected to the bottom surface of the upper machine base, and the two ends of the lifting drive component are respectively fixedly connected to the top surface of the lower machine base and the bottom surface of the upper machine base.

[0015] The lifting drive member is an electric push rod, a cylinder or a hydraulic cylinder.

[0016] The driving mechanism is connected to the upper machine base through two sets of guide rail and slider assemblies. The guide rails of the guide rail and slider assemblies are fixedly connected to the upper machine base, the seat plate is fixedly connected to the slider, and the driving mechanism is installed on the seat plate.

[0017] The support rod is a split structure, which includes a fixed tube and a movable rod placed in the fixed tube. The tube wall of the fixed tube is provided with multiple adjustment holes, and the movable rod is provided with threaded holes corresponding to the adjustment holes. The adjustment bolt passes through the adjustment hole and is screwed to the threaded hole.

[0018] A fixed plate parallel to the guide rails is installed on the upper machine base between the two guide rails of the two sets of guide rail slider assemblies. Multiple adjustment threaded holes are set on the fixed plate. The base plate has long holes corresponding to the adjustment threaded holes. The adjustment threaded holes of the base plate and the fixed plate are connected by adjustment bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0020] Figure 2 yes Figure 1 Left view of;

[0021] Figure 3 This is a front view of the desilting impeller according to the first embodiment of the present invention;

[0022] Figure 4 yes Figure 3 AA cross-sectional view;

[0023] Figure 5 Schematic diagram of a scraper bucket according to a first embodiment of the present invention;

[0024] Figure 6 1 is a schematic diagram of a base according to a second embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the scraper bucket and the support rod according to the second embodiment of the present invention;

[0026] Figure 8 4 is a diagram of the desilting state according to an embodiment of the present invention.

[0027] In the figure: machine base 1; lower machine base 1-1; upper machine base 1-2; guide sleeve 1-3; guide column 1-4; electric push rod 1-5; guide rail 1-6; slider 1-7; seat plate 1-8; reduction motor 2; desilting impeller 3; shaft sleeve 4; rib 4-1; blade teeth 5; support rod 6; fixed pipe 6-1; movable rod 6-2; mud scraper 7; bucket top plate 7-1; bucket bottom plate 7-2; outer plate 7-3; inner plate 7-4; rear bucket plate 7-5; discharge port 7-6; baffle 7-7; mud guard plate 8; mud guard 9; rib plate 9-1; chute 10; water sealing groove 11; trolley guard plate 12. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and examples.

[0029] Example 1

[0030] See also Figure 1 、 Figure 2 This embodiment is a desilting device for the water seal tank of an annular cooler, mainly composed of a base 1, a drive mechanism and a desilting impeller 3. The base 1 is a welded component of a frame structure, and the drive mechanism is installed on the base 1. In this embodiment, a reduction motor 2 is preferably used. The reducer of the reduction motor 2 is a cycloid reducer. The motor of the reduction motor 2 is a variable frequency motor with adjustable speed. The desilting impeller 3 is installed on the output shaft of the reduction motor 2 ( Figure 3 、 Figure 4 As shown in FIG), the desilting impeller 3 is composed of a shaft sleeve 4 and blade teeth 5, and the blade teeth 5 are mainly composed of a support rod 6 and a scraping bucket 7 ( Figure 5 The shaft sleeve 4 is mounted on the output shaft of the reduction motor 2 and connected to it via a key. Three support rods 6 are radially welded to the outer circumference of the shaft sleeve 4. The support rods 6 have an H-shaped cross-section and a beveled outer end. A mud scraper 7 is welded to the outer end of the support rods 6. A rib 4-1 is welded between the side of the support rod 6 opposite the direction of rotation and the shaft sleeve 4.

[0031] The bucket openings of the three scraping buckets 7 face the rotation direction of the mud removing impeller 3. The scraping bucket 7 is mainly composed of a bucket top plate 7-1, a bucket bottom plate 7-2, an outer plate 7-3, an inner plate 7-4, a rear bucket plate 7-5 and a baffle 7-7. The rear bucket plate 7-5 is opposite to the bucket opening. The bucket top plate 7-1 is arc-shaped. The outer end of the bucket bottom plate 7-2 of the scraping bucket 7 is inclined toward the center of the circle of the shaft sleeve 4. The plate surface of the bucket bottom plate 7-2 is set tangentially. A discharge port 7-6 is opened between the outer ends of the outer plate 7-3 and the bucket bottom plate 7-2. The outer plate 7-3 and the discharge port 7-6 are both located on the outside of the outer end surface of the shaft sleeve 4. A baffle 7-7 is welded to the inner edge of the bucket opening. The baffle 7-7 prevents the silt from flowing out from the inner edge of the bucket opening after the scraping bucket 7 moves to the top. A circular mud guard plate 8 is welded to the outer end of the shaft sleeve 4. The mud guard plate 8 is located below the bucket bottom plate 7-2. A mud guard plate 9 is welded between the base of the mud guard plate 8 and the outer end of the bucket bottom plate 7-2. The width of the desilter impeller 3 matches the width of the water seal groove 11 of the annular cooler. Three ribs 9-1 are welded between the outer surface of the mud guard plate 8 and the shaft sleeve 4.

[0032] Example 1 is applicable to annular coolers of fixed specifications and models ( Figure 8 As shown, during use, the reduction motor 2 is mounted on the machine base 1, and the desilting impeller 3 is mounted on the output shaft of the reduction motor 2. The entire device is then hoisted to the outside of the water-sealed tank 11 and mounted on a support frame (not shown). The desilting impeller 3 is placed within the water-sealed tank 11, and the gap between the desilting impeller 3's scraper 7 and the water-sealed tank 11 is adjusted using shims on the support frame. The hopper 10 is positioned across the trolley railing 12 and tilted, with the inner end of the hopper 10 close to the shaft sleeve 4. The scraper 7 of the desilting impeller 3 rotates to the bottom of the water-sealed tank 11, scraping sludge into the scraper 7. When the scraper 7 rotates to the top, the sludge falls from the discharge port 7-6 into the hopper 10 under the action of gravity, and then enters the inner side of the trolley railing 12 of the annular cooler. During operation, the speed of the reduction motor 2 is synchronized with the speed of the annular cooler, ensuring automatic silt removal.

[0033] Example 2

[0034] See also Figure 6 、 Figure 7The base 1 of the second embodiment is a split structure, primarily consisting of a lower base 1-1, an upper base 1-2, a guide sleeve 1-3, a guide post 1-4, an electric push rod 1-5, a guide rail 1-6, a slider 1-7, and a base plate 1-8. Vertical guide sleeves 1-3 are welded to the four corners of the top surface of the lower base 1-1. The guide post 1-4 is inserted into and slidably connected to the guide sleeve 1-3. The upper end of the guide post 1-4 is welded to the bottom surface of the upper base 1-2. The electric push rod 1-5 is positioned between the lower base 1-1 and the upper base 1-2. The cylinder of the electric push rod 1-5 is bolted to the lower base 1-1, and the piston rod of the electric push rod 1-5 is connected to the upper base 1-2. The electric push rod 1-5 can also be a pneumatic cylinder or a hydraulic cylinder. A fixing plate (not shown) parallel to the guide rails 1-6 is installed on the upper machine base 1-2 between the two guide rails 1-6. A plurality of adjustment threaded holes are provided on the fixing plate. The seat plate 1-8 is provided with long holes corresponding to the adjustment threaded holes. The adjustment threaded holes of the seat plate 1-8 and the fixing plate are connected by adjustment bolts.

[0035] The support rod 6 is a split structure consisting of a fixed tube 6-1 and a movable rod 6-2. The fixed tube 6-1 has a rectangular or circular cross-section, and the movable rod 6-2 is inserted into the fixed tube 6-1. The movable rod 6-2 is slidably connected to the fixed tube 6-1. The fixed tube 6-1 has multiple adjustment holes in its wall, and the movable rod 6-2 has threaded holes corresponding to the adjustment holes. Adjustment bolts pass through the adjustment holes and are screwed into the threaded holes. The scraper 7 is welded to the outer end of the movable rod 6-2. The distance between the scraper 7 and the shaft sleeve 4 is adjusted by the fixed tube 6-1 and the movable rod 6-2 to accommodate water-sealing grooves of varying depths.

[0036] The second embodiment is applicable to annular coolers of different specifications and models. The device is hoisted as a whole to the support frame outside the water sealing tank 11. The electric push rod 1-5 is operated to raise the reduction motor 2 and the desilting impeller 3. The seat plate 1-8 or the reduction motor 2 is pushed to position the desilting impeller 3 above the water sealing tank 11. The electric push rod 1-5 is operated to lower the reduction motor 2 and the desilting impeller 3. The gap between the scraping bucket 7 and the bottom of the water sealing tank 11 is adjusted by the fixed pipe 6-1 and the movable rod 6-2, and the scraping bucket is moved upward. 7 and the gaps between the trough plates on both sides of the water-sealed groove 11 are equal. The base plates 1-8 are fixed, and the hopper 10 is placed across the trolley guardrail 12 and tilted. The inner end of the hopper 10 is close to the shaft sleeve 4. The reduction motor 2 is started, and the scraper 7 of the desilting impeller 3 rotates to the bottom of the water-sealed groove 11, scraping the silt into the scraper 7. When the scraper 7 rotates to the top, the silt falls into the hopper 10 from the discharge port 7-6 under the action of gravity, and then enters the inner side of the trolley guardrail 12 of the annular cooler. During operation, the speed of the reduction motor 2 is synchronized with the speed of the annular cooler.

[0037] The present invention directly scrapes the silt in the water sealing tank through the desilting impeller, and the silt is rotated by the desilting impeller to fall onto the chute, and the chute transports the silt to the inside of the circular cooler trolley railing, so that the silt is removed more thoroughly and cleanly, and the work efficiency is improved.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of this specification and its drawings are included in the scope of the present invention.

Claims

1. A desilting device for a water seal tank of an annular cooler, comprising a base and a drive mechanism disposed on the base, characterized in that: The driving mechanism is provided with a desilting impeller, which includes a shaft sleeve and blade teeth. The blade teeth include a support rod and a scraping bucket. A plurality of support rods are radially and evenly distributed on the outer circumference of the shaft sleeve. The scraping bucket is placed at the outer end of the support rod. The outer end of the support rod is an inclined surface. The bucket mouth of the scraping bucket faces the rotation direction of the desilting impeller. The scraper bucket includes an arc-shaped bucket top plate, a bucket bottom plate, an outer plate, an inner plate and a rear bucket plate. The rear bucket plate is opposite to the bucket mouth. The outer end of the bucket bottom plate is inclined toward the center of the shaft sleeve. A discharge port is provided between the outer ends of the outer plate and the bucket bottom plate. The discharge port is located outside the outer end surface of the shaft sleeve. A baffle is provided on the inner edge of the bucket mouth. The outer end of the shaft sleeve is fixedly connected to a circular mud guard plate, which is located below the bucket bottom plate; The chute is placed across the trolley railing and tilted, with the inner end of the chute close to the shaft sleeve. The scraper bucket of the mud removal impeller rotates to the bottom of the water seal groove and scrapes the sludge into the scraper bucket. When the scraper bucket rotates to the top, the sludge falls into the chute from the discharge port under the action of gravity, and enters the inner side of the trolley railing of the annular cooler from the chute.

2. The desilting device for the water sealing groove of the annular cooler according to claim 1, characterized in that: The support rod is an integral structure with an H-shaped cross section. A rib is provided between the side of the support rod opposite to the rotation direction and the shaft sleeve.

3. The desilting device for the water sealing groove of the annular cooler according to claim 1, characterized in that: A mud guard is provided between the outer end of the bucket bottom plate and the root of the mud guard plate.

4. The desilting device for the water sealing groove of the annular cooler according to claim 1, characterized in that: The machine base is a split structure, including a lower machine base, an upper machine base, a sleeve, a guide column and a lifting drive component. The four corners of the top surface of the lower machine base are fixedly connected to the vertical guide sleeve. The guide column is inserted into the sleeve and is slidably connected to the guide sleeve. The upper end of the guide column is fixedly connected to the bottom surface of the upper machine base, and the two ends of the lifting drive component are respectively fixedly connected to the top surface of the lower machine base and the bottom surface of the upper machine base.

5. The desilting device for the water sealing groove of the annular cooler according to claim 4, characterized in that: The lifting drive member is an electric push rod, a cylinder or a hydraulic cylinder.

6. The desilting device for the water sealing groove of the annular cooler according to claim 4, characterized in that: The driving mechanism is connected to the upper machine base through two sets of guide rail and slider assemblies. The guide rails of the guide rail and slider assemblies are fixedly connected to the upper machine base, the seat plate is fixedly connected to the slider, and the driving mechanism is installed on the seat plate.

7. The desilting device for the water sealing groove of annular cooler according to claim 1, characterized in that: The support rod is a split structure, which includes a fixed tube and a movable rod placed in the fixed tube. The tube wall of the fixed tube is provided with multiple adjustment holes, and the movable rod is provided with threaded holes corresponding to the adjustment holes. The adjustment bolt passes through the adjustment hole and is screwed to the threaded hole.

8. The desilting device for the water sealing groove of an annular cooler according to claim 4, characterized in that: A fixed plate parallel to the guide rails is installed on the upper machine base between the two guide rails of the two sets of guide rail slider assemblies. Multiple adjustment threaded holes are set on the fixed plate. The base plate has long holes corresponding to the adjustment threaded holes. The adjustment threaded holes of the base plate and the fixed plate are connected by adjustment bolts.

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