CN111252480A - Double-valve-core discharging device - Google Patents
Double-valve-core discharging device Download PDFInfo
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- CN111252480A CN111252480A CN202010187968.5A CN202010187968A CN111252480A CN 111252480 A CN111252480 A CN 111252480A CN 202010187968 A CN202010187968 A CN 202010187968A CN 111252480 A CN111252480 A CN 111252480A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G29/00—Rotary conveyors, e.g. rotating discs, arms, star-wheels or cones
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Abstract
The invention discloses a double-valve-core discharging device which comprises a first valve core arranged in a first machine shell, a first impeller arranged around a central main shaft of the first valve core, a second valve core arranged in a second machine shell, and a second impeller arranged around a central main shaft of the second valve core, wherein the first impeller is arranged in the first machine shell; the first valve core is positioned above the second valve core; a cavity for forming a feeding channel is arranged above the first valve core, and the feeding channel is obliquely connected with a feeding port; the first machine shell and the second machine shell are connected with each other, and another cavity for forming a material guiding channel is arranged at the joint; the lower part of the second valve core is connected with a discharge hole through a discharge channel; and the central main shafts of the first valve core and the second valve core are in transmission connection with a driving motor. The double-valve-core discharging device is simple in design and easy to operate, is simple, convenient and flexible to install and maintain, reduces the failure rate, improves the running stability of the device, and can solve the problems of material clamping and material shearing of the conventional discharger.
Description
Technical Field
The invention belongs to the technical field of material conveying, and relates to a double-valve-core discharging device.
Background
At present, the discharging device adopts a star-shaped discharger, a heavy hammer discharger, an electric double-layer discharger, a pneumatic double-layer discharger and the like. The star-shaped discharger consists of a rotor impeller with a plurality of blades, a shell, a speed reducer and a sealing element, the speed reducer drives the impeller to rotate through a coupling by a speed reducing motor, materials on the upper part of the shell are uniformly carried to the lower part, and the materials are conveyed away by the next device; the dust remover is suitable for drying powdery and small granular materials, has the characteristic of accurate material quantity control, but when larger granular hard objects fall into the groove body, the valve core is often clamped and the dust remover cannot work normally. The heavy hammer discharger is opened and closed alternately under the action of gravity, and the heavy hammer automatically resets the device; generally applicable to dry, low-viscosity and low-agglomeration dust, and when the dust property does not meet the requirements, the shed material is easy to generate firstly, and then the instant 'nested' discharging phenomenon is generated. In order to increase the air tightness of the ash discharge system, two dischargers of some type (e.g. hammer discharger) can be used in series, thus creating a double discharger, in the prior art, the sealing valves of which have cone valves and plate valves; however, the double-layer discharger also has the problem that the material is blocked and the valve head is easy to wear.
Therefore, it is very necessary for those skilled in the art to provide a dual-valve-core discharging device which has a simple design, is easy to operate, is simple and flexible to install and maintain, reduces the failure rate, improves the operation stability of the device, and can solve the problems of material jamming and material shearing of the existing discharger.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the double-valve-core discharging device which is simple in design, easy to operate, simple, convenient and flexible to install and maintain, capable of reducing the failure rate, improving the running stability of the device and simultaneously capable of solving the problems of material clamping and material shearing of the existing discharger.
The technical scheme provided by the invention is as follows:
a double-valve-core unloading device comprises a first valve core arranged in a first machine shell, a first impeller arranged around a central main shaft of the first valve core, a second valve core arranged in a second machine shell, and a second impeller arranged around a central main shaft of the second valve core;
the radial size of a first impeller on the first valve core is matched with that of the first machine shell; the radial size of a second impeller on the second valve core is matched with the radial size of the second shell; the material bin enclosed by at least two adjacent blades on the first casing and the first impeller forms a sealed cavity, and the material bin enclosed by at least two groups of centrosymmetric adjacent blades on the second casing and the second impeller forms a sealed cavity;
the first valve core is positioned above the second valve core; a cavity for forming a feeding channel is arranged above the first valve core, and the feeding channel is obliquely connected with a feeding port;
the first machine shell and the second machine shell are connected with each other, and another cavity for forming a material guiding channel is arranged at the joint;
the lower part of the second valve core is connected with a discharge hole through a discharge channel;
and the central main shafts of the first valve core and the second valve core are in transmission connection with a driving motor.
Preferably, the first casing and the second casing are connected through a connecting pipe; and a material guiding channel is formed in the connecting pipe.
Furthermore, the connecting pipes of the first casing and the second casing are detachably connected by flanges.
Furthermore, a cleaning inspection opening is formed in the side face of the connecting pipe and fixed with the connecting pipe through bolts.
Preferably, the central main shafts of the first valve core and the second valve core are connected with a driving motor through a transmission chain wheel or a belt pulley.
Furthermore, a first chain wheel is arranged on a central main shaft of the first valve core, and a second chain wheel is arranged on a central main shaft of the second valve core;
the driving motor and the first chain wheel are driven by a first transmission chain, and the driving motor and the second chain wheel are driven by a second transmission chain; or the driving motor, the first chain wheel and the second chain wheel are connected in sequence through a transmission chain.
Preferably, the feeding channel is provided with a step surface above one side close to the first valve core, and the other side opposite to the feeding channel is provided with a slope;
and a feeding adjusting plate with adjustable overhanging length is arranged on the step surface of the feeding channel and used for adjusting the blanking amount of the inlet solid material.
Furthermore, the feeding adjusting plate is a folded plate, the folded plate comprises a vertical section and a bent section, the vertical section is fixed on the vertical surface of the step surface, and the bent section of the folded plate is arranged towards one side of the feeding port; the relative length of the folding plate and the step surface in the vertical direction can be adjusted.
Furthermore, the included angle α of the vertical section and the bending section is controlled to be 135-150 degrees.
Furthermore, the vertical distance from the top end of the first valve core to the step surface of the feeding channel is 50-60 mm, and an inspection port is arranged right above the first valve core on the step surface.
Furthermore, a vertical rubber plate is arranged on the stepped surface of the rear end of the feeding channel along the rotation direction of the impeller, and a gap of 3-5 mm is formed between the lower end of the rubber plate and the impeller.
Furthermore, a cleaning and emergency discharging port is arranged on the inclined surface of the feeding channel.
Further, the thickness of the rubber plate is 8-10 mm.
Preferably, a nitrogen purging pipe is arranged at the upper right part of the second valve core.
Furthermore, the vertical distance between the center of the nitrogen purging pipe and the rotating path of the second impeller is 20-30 mm; the pipe diameter of the nitrogen purging pipe is 25-30 mm.
Preferably, the radial dimension of the first impeller on the first valve core is matched with the radial dimension of the first machine shell; the radial size of a second impeller on the second valve core is matched with the radial size of the second shell; and/or the presence of a gas in the gas,
preferably, the horizontal center distance and the vertical center distance between the feeding port and the first valve core are 1.1-1.2 times of the diameter of the first impeller; the horizontal center distance between the discharge port and the second valve core is 0.2-0.3 times of the diameter of the second impeller, and the vertical center distance is 0.6-0.8 times of the diameter of the second impeller.
Preferably, the rotating speed of the second valve core is controlled to be greater than that of the first valve core, the number of the blades of the first impeller is greater than or equal to 6, and the rotating speed is greater than or equal to 10 r/min; the number of the blades of the second impeller is more than or equal to 8, and the rotating speed is more than or equal to 15 r/min.
Preferably, the radian of the first casing is 1.25-1.35 times of the included angle radian of two adjacent blades of the first impeller, and the radian of the second casing is 2.2-2.5 times of the included angle radian of two adjacent blades of the second impeller.
Preferably, the diameters of the first impeller and the second impeller are the same and are both D, and D is more than or equal to 250 mm; the horizontal center distance between the first valve core and the second valve core is 0.5-0.6 times of the diameter D, and the vertical center distance is 1.5-2 times of the diameter D.
Preferably, the inclined feeding of the feeding channel and the horizontal plane of the feeding port form an included angle of 45 degrees.
Compared with the double-layer discharger in the prior art, the two identical dischargers are generally adopted for simple superposition, and the double-spool discharger can bring the following beneficial effects:
1) according to the double-valve-core discharger, the cavity is designed at the top of the first valve core, the other cavity is arranged between the first casing and the second casing, and different sealing cavity designs are performed on the first valve core and the second valve core which are arranged up and down, so that the smoothness and the safety of material conveying are guaranteed, the design is simple and easy to operate, the installation and the maintenance are simple, convenient and flexible, the problems of material clamping, material shearing and the like of the conventional discharger can be solved, the failure rate is reduced, and the operation stability of the device is improved.
2) According to the invention, by controlling different numbers of impellers and different radians of the casing, the sealing performance of the second valve core at the lower side is higher than that of the first valve core at the upper side, the safety performance of the device is effectively ensured on the premise of ensuring smooth discharging, and the operation is more reliable and stable. And the rotating speed of the second valve core is controlled to be greater than that of the first valve core, so that the solid materials can be further discharged smoothly from the discharging device.
3) The discharging device is integrally provided with a plurality of inspection ports, the bolt connection is convenient to disassemble, when the discharger needs to be maintained and cleaned, the inside of the discharger can be maintained and cleaned by disassembling the observation port, the connection between the body equipment and the external equipment is not required to be disassembled, the use recovery period is relatively fast, and the operation efficiency of the equipment can be improved.
4) According to the invention, the cleaning and emergency discharging hole is obliquely arranged on the feeding channel, so that emergency discharging can be carried out in case of an accident of the device, such as over-temperature in the tower, the material in the device can be discharged in time, the potential safety hazard of the device is reduced, meanwhile, the damage of the discharging device caused by over-temperature use can be avoided, and the service life of the discharging device is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a double-valve-core discharging device of the invention.
Fig. 2 is a schematic structural diagram of another embodiment of the double-valve-core discharging device.
Fig. 3 is a schematic structural diagram of another embodiment of the double-valve-core discharging device.
Fig. 4 is a schematic structural diagram of a discharging device with two valve cores according to another embodiment of the invention.
The notations in the figures mean:
1-a feeding port;
2-feeding channel, 20-step surface, 21-inclined surface, 22-feeding adjusting plate, 200-inspection opening, 210-cleaning and emergency discharging opening, 23-rubber plate;
3-a first housing, 30-a first valve core, 31-a first impeller, 32-a first sprocket;
4-material guiding channel, 40-connecting pipe, 41-cleaning inspection port and 42-flange;
5-a second housing, 50-a second valve core, 51-a second impeller, 52-a second chain wheel;
6-a discharge channel; 7-discharging port;
8-drive motor, 80-transmission chain, 81-first transmission chain and 82-second transmission chain.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
According to an embodiment of the present invention, as shown in fig. 1, a dual-spool unloading device is provided, which includes a first spool 30 disposed in a first housing 3, a first impeller 31 mounted around a central main shaft of the first spool 30, a second spool 50 disposed in a second housing 5, and a second impeller 51 mounted around a central main shaft of the second spool 50;
the radial dimension of the first impeller 31 on the first valve core 30 is matched with the radial dimension of the first housing 3; the radial dimension of the second impeller 51 on the second valve core 50 is matched with the radial dimension of the second shell 5; a sealing cavity A is formed by the material bin surrounded by at least two adjacent blades on the first casing 3 and the first impeller 31, and a sealing cavity B is formed by the material bin surrounded by at least two groups of adjacent blades which are centrosymmetric on the second casing 5 and the second impeller 51;
the first valve spool 30 is positioned above the second valve spool 50; a cavity for forming a feeding channel 2 is arranged above the first valve core 30, and the feeding channel 2 is obliquely connected with the feeding port 1;
the first machine shell 3 and the second machine shell 5 are mutually connected, and another cavity for forming the material guiding channel 4 is arranged at the joint;
the lower part of the second valve core 50 is connected with a discharge hole 7 through a discharge channel 6;
the central main shafts of the first valve core 30 and the second valve core 50 are in transmission connection with the driving motor 8.
The double-valve-core discharging device provided by the embodiment, on the one hand, through pan feeding mouth, 2 slant baiting of feedstock channel, the material gets into and encloses the first impeller 31 of establishing on the first valve core 30, can take place to rotate along with first impeller 31 to drive the material and get into between the adjacent blade and lead in the material passageway 4, then, the material gets into and encloses the second impeller 51 of establishing on the second valve core 50 thereupon, drives the material and gets into in discharging channel 6 along with the rotation of second impeller 51. The design of the cavity above the first valve core 30 and the design of the cavity between the second machine shell 5 and the first machine shell 3 ensure that a larger space is reserved above the materials and in the circulation area; on the other hand, the first impeller 31 is matched with the first casing 3 in size, and the second impeller 51 is matched with the second casing 5 in size, so that the materials sequentially flow into the material guiding channel 4 through the feeding channel 2 and the first impeller 31 on the first valve core 30 and then flow into the material discharging channel 6 through the second impeller 51 on the second valve core 50, the discharging process is stable and ordered, and material blockage and material clamping are not easy to occur; a sealing cavity A is formed by the material bin surrounded by at least two adjacent blades on the first casing 3 and the first impeller 31, and a sealing cavity B is formed by the material bin surrounded by at least two groups of adjacent blades which are centrosymmetric on the second casing 5 and the second impeller 51; in the process that the first impeller 31 and the second impeller 52 rotate continuously, the materials are driven by the sealing cavity formed by the two blades to be sent out downwards continuously, and the sealing performance of the second valve core 50 positioned at the lower side is higher than that of the first valve core 30 positioned at the upper side by designing the first valve core 30 and the second valve core 50 which are arranged up and down in different sealing performances; the gas in the device is effectively prevented from leaking, and the use safety of the invention is improved. Therefore, the material conveying device can guarantee smooth material conveying, provides enough discharging space for materials, increases material processing capacity, forms a proper flowing discharging stroke, is simple and easy to operate in design, simple, convenient and flexible to install and maintain, is safe and reliable, can solve the problems of material clamping, material shearing and the like of the existing discharger, discharges materials smoothly, reduces failure rate and improves the operation stability of the device.
According to another embodiment of the present invention, the present invention is a dual-spool discharging device, which is different from the first embodiment in that the first casing 3 and the second casing 5 are connected by a connecting pipe 40; the connecting pipe 40 forms a material guiding channel 4.
Preferably, the connecting pipes 40 of the first housing 3 and the second housing 5 are detachably connected by flanges. Preferably, a cleaning inspection port 41 is provided on a side surface of the connection pipe 40, and the cleaning inspection port 41 is fixed to the connection pipe 40 by a bolt.
In this embodiment, the connecting pipe 40 of the first housing 3 and the second housing 5 is connected by the flange 42, so that the disassembly is convenient. Wherein, the first valve core 30 can be used as a single valve core discharger independently, so that the installation and the maintenance of the field discharging device are simpler and more convenient and flexible.
According to another embodiment of the present invention, the present invention is a dual valve core unloading device, and the present embodiment is different from the first embodiment in that the central main shafts of the first valve core 30 and the second valve core 50 are connected with the driving motor 8 through a transmission sprocket or a pulley.
In practical application, as shown in fig. 1 and 2, a first chain wheel 32 is disposed on the central main shaft of the first valve core 30, and a second chain wheel 52 is disposed on the central main shaft of the second valve core 50; the driving motor 8 and the first chain wheel 32 are driven by a first transmission chain 81, and the driving motor 8 and the second chain wheel 52 are driven by a second transmission chain 82; the driving motor 8 may be disposed on the left side or the right side of the first valve core and the second valve core. Alternatively, a more compact structure is arranged, as shown in fig. 3 and 4, the driving motor 8, the first chain wheel 32 and the second chain wheel 52 are connected in sequence by a transmission chain 80; the driving motor 8 may be disposed on the left side or the right side of the first valve core and the second valve core.
According to another embodiment of the present invention, a dual-spool unloading device is provided, which is different from the first embodiment in that the feeding channel 2 is provided with a step surface 20 above one side close to the first spool 30, and the other side opposite to the feeding channel 2 is provided with a slope surface 21;
and a feeding adjusting plate 22 with adjustable overhanging length is arranged on the step surface 20 of the feeding channel 2 and used for adjusting the feeding amount of inlet solid materials.
The embodiment provides the concrete form that sets up of feedstock channel 2, through the length adjustment of pan feeding regulating plate 22 on the step face 20 of one side, the unloading volume of adjustment pan feeding mouth solid material, guarantee that the material height that enters into between the arbitrary two impellers of first case 30 is no longer than 2/3 material levels, especially guarantee that the material height between two impellers directly over first case 20 is no longer than 2/3 on the vertical height of the similar trapezoidal feed bin that two impellers formed, thereby realize the smooth transfer of material, avoid cutting, the card material problem of solid material.
Preferably, the feeding adjusting plate 22 is a folded plate, the folded plate comprises a vertical section and a bent section, the vertical section is fixed on the vertical surface of the step surface, and the bent section of the folded plate is arranged towards one side of the feeding port 1; the relative length of the folding plate and the step surface in the vertical direction can be adjusted.
In the embodiment, the folded plate is fixed on the step surface through the bolts, the bent section facing one side of the feeding port provides a buffering effect on materials, the overhanging length of the folded plate relative to the step surface can be adjusted through different bolt fixing positions, the buffering effect with different degrees is provided according to the blanking speed matching, in addition, the included angle α between the vertical section and the bent section is controlled to be 135-150 degrees, the materials can uniformly fall in the feeding channel, and the phenomenon that the materials are blocked due to instant congestion cannot be caused.
As another more preferred embodiment, the vertical distance between the top end of the first valve core 30 and the step surface 20 is 50-60 mm, and an inspection opening 200 is arranged on the step surface 20 and right above the first valve core 30; the inspection port 200 is connected to the step surface 20 by a bolt.
Preferably, a rubber plate 23 is arranged on the stepped surface of the rear end of the feed channel 2 along the rotation direction of the impeller. In practical application, the thickness of the rubber plate 23 is 8-10 mm, and a gap of 3-5 mm is formed between the lower end 23 of the rubber plate and the first impeller 31.
In this embodiment, the rubber plate 23 can intercept or intercept sundries such as welding rods entering vertically and then pour the intercepted sundries into the material between the two impellers; and the top of the first valve core 30 is provided with a visual inspection port, so that the feeding adjusting plate 22 can be adjusted in time, and smooth flowing of materials is ensured.
As another preferred embodiment, the inclined surface 21 of the feeding channel 2 is provided with a cleaning and emergency discharging hole 210.
Cleaning and emergent drain hole 210's setting in this embodiment, can realize promptly arranging the material under the incident condition, if the tower is interior super-warm, in time with the device in the material discharge, the potential safety hazard of reducing device can avoid the tripper itself to use the damage that leads to because of super-warm simultaneously, improves the life of tripper.
According to another embodiment of the invention, the device is a double-valve-core discharging device, and the difference between the embodiment and the first embodiment is that a nitrogen purging pipe 53 is arranged at the upper right of the second valve core 50, and the vertical distance from the center of the nitrogen purging pipe 53 to the rotation path of the second impeller is 20-30 mm. In practical application, the pipe diameter of the nitrogen purging pipe is 25-30 mm.
The setting of nitrogen gas purge pipe in this embodiment can also play certain interception effect to the material when realizing the atmoseal, reduces the material and takes place the possibility of card material and cutting material at the casing, realizes the smooth and easy output of material. In general, the valve core rotates clockwise, and the nitrogen purge pipe 53 is arranged at the upper right of the second valve core 50, so that the blocking effect is more obvious.
According to another embodiment provided by the invention, the discharging device is a double-valve-core discharging device, and the difference between the embodiment and the first embodiment is that the horizontal center distance and the vertical center distance between the feeding port and the first valve core are 1.1-1.2 times of the diameter of the first impeller; the horizontal center distance between the discharge port and the second valve core is 0.2-0.3 times of the diameter of the second impeller, and the vertical center distance is 0.6-0.8 times of the diameter of the second impeller. In this embodiment, the stability of feeding ejection of compact can be guaranteed in the setting of staggering of pan feeding mouth and discharge gate.
According to another embodiment provided by the invention, the discharging device is a double-valve-core discharging device, and the difference between the embodiment and the first embodiment is that the number of the blades of the first impeller 31 is more than or equal to 6, and the rotating speed is more than or equal to 10 r/min; the number of the blades of the second impeller 51 is more than or equal to 8, and the rotating speed is more than or equal to 15 r/min. The rotating speed of the second valve core 50 is controlled to be larger than that of the first valve core 30, and through different design of the rotating speeds of the upper valve core and the lower valve core, smooth discharge of solid materials from the discharging device can be further ensured. Preferably, the radian of the first casing 3 is 1.25 to 1.35 times of the radian of the included angle between two adjacent blades of the first impeller 31, and the radian of the second casing 5 is 2.2 to 2.5 times of the radian of the included angle between two adjacent blades of the second impeller 51. In the embodiment, through different designs of the number of the blades of the impellers on the first valve core and the second valve core and the radian of the machine shell, a material bin surrounded by at least two adjacent blades on the first machine shell 3 and the first impeller 31 is ensured to form a sealed cavity A, and at least two groups of material bins surrounded by two adjacent blades which are centrosymmetric on the second machine shell 5 and the second impeller 51 form a sealed cavity B, so that the sealing performance of the second valve core positioned at the lower side is higher than that of the first valve core positioned at the upper side, the smooth discharging is ensured, meanwhile, the gas in the device is effectively prevented from leaking, and the safety of the device is improved; when the double-valve-core unloading device is arranged above an engineering device such as a flue gas purification device or a regeneration device (flue gas contains pollution gases such as sulfur dioxide and the like, the leakage is harmful to human bodies, meanwhile, the processing load of the device is increased when air enters the flue gas purification device, high-concentration sulfur dioxide in the regenerated gas components regenerated by the regeneration device is harmful, meanwhile, the regeneration device has high requirement on oxygen content due to high temperature, and accidents such as tower burning and the like are easily caused by the air entering device), the double-valve-core unloading device ensures that the flue gas does not leak outwards and the safety of personnel, and when the double-valve-core unloading device is arranged below the engineering device, the air does not enter the engineering device, and the.
According to another embodiment provided by the invention, the discharging device is a double-valve-core discharging device, and the difference between the embodiment and the first embodiment is that the diameters of the first impeller and the second impeller are the same and are both D, and D is more than or equal to 250 mm; the horizontal center distance between the first valve core and the second valve core is 0.5-0.6 times of the diameter D, and the vertical center distance is 1.5-2 times of the diameter D. In this embodiment, the first valve core 30 and the second valve core 50 are controlled to maintain a certain distance in the horizontal direction, so as to facilitate further blanking.
In the above embodiment, the oblique feeding of the feeding channel forms an included angle of 45 degrees with the horizontal plane of the feeding port.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a double-valve core discharge apparatus which characterized in that:
the centrifugal pump comprises a first valve core arranged in a first machine shell, a first impeller arranged around a central main shaft of the first valve core, a second valve core arranged in a second machine shell and a second impeller arranged around a central main shaft of the second valve core;
the radial size of a first impeller on the first valve core is matched with that of the first machine shell; the radial size of a second impeller on the second valve core is matched with the radial size of the second shell; the material bin enclosed by at least two adjacent blades on the first casing and the first impeller forms a sealed cavity, and the material bin enclosed by at least two groups of centrosymmetric adjacent blades on the second casing and the second impeller forms a sealed cavity;
the first valve core is positioned above the second valve core; a cavity for forming a feeding channel is arranged above the first valve core, and the feeding channel is obliquely connected with a feeding port;
the first machine shell and the second machine shell are connected with each other, and another cavity for forming a material guiding channel is arranged at the joint; the lower part of the second valve core is connected with a discharge hole through a discharge channel;
and the central main shafts of the first valve core and the second valve core are in transmission connection with a driving motor.
2. The dual spool discharge device of claim 1, wherein:
the first shell and the second shell are connected through a connecting pipe; and a material guiding channel is formed in the connecting pipe.
3. The dual spool discharge device of claim 2, wherein:
the connecting pipes of the first shell and the second shell are detachably connected by flanges; and/or the presence of a gas in the gas,
and a cleaning inspection port is arranged on the side surface of the connecting pipe and is fixed with the connecting pipe by adopting a bolt.
4. The dual spool discharge device of claim 1, wherein:
and the central main shafts of the first valve core and the second valve core are connected with a driving motor through a transmission chain wheel or a belt pulley.
5. The dual spool discharge device of claim 4, wherein:
a first chain wheel is arranged on a central main shaft of the first valve core, and a second chain wheel is arranged on a central main shaft of the second valve core;
the driving motor and the first chain wheel are driven by a first transmission chain, and the driving motor and the second chain wheel are driven by a second transmission chain; or the driving motor, the first chain wheel and the second chain wheel are connected in sequence through a transmission chain.
6. The dual spool discharge device of claim 1, wherein:
the feeding channel is provided with a step surface above one side close to the first valve core, and the other side opposite to the feeding channel is provided with an inclined surface;
and a feeding adjusting plate with adjustable overhanging length is arranged on the step surface of the feeding channel and used for adjusting the blanking amount of the inlet solid material.
7. The dual spool discharge device of claim 6, wherein:
the feeding adjusting plate is a folded plate, the folded plate comprises a vertical section and a bent section, the vertical section is fixed on the vertical surface of the step surface, and the bent section of the folded plate is arranged towards one side of the feeding port;
the relative length of the folding plate and the step surface in the vertical direction can be adjusted.
8. The dual spool discharge device of claim 6, wherein:
the vertical distance between the top end of the first valve core and the step surface of the feeding channel is 50-60 mm, and an inspection port is formed in the step surface and right above the first valve core; and/or the presence of a gas in the gas,
a vertical rubber plate is arranged on the stepped surface of the feeding channel at the rear end along the rotation direction of the impeller, and a gap of 3-5 mm is formed between the lower end of the rubber plate and the impeller; and/or the presence of a gas in the gas,
and a cleaning and emergency discharging port is arranged on the inclined surface of the feeding channel.
9. The dual spool discharge device of claim 1, wherein:
controlling the rotating speed of the second valve core to be larger than that of the first valve core, wherein the number of the blades of the first impeller is more than or equal to 6, and the rotating speed is more than or equal to 10 r/min; the number of the blades of the second impeller is more than or equal to 8, and the rotating speed is more than or equal to 15 r/min; and/or the presence of a gas in the gas,
the radian of the first casing is 1.25-1.35 times of the included angle radian of two adjacent blades of the first impeller, and the radian of the second casing is 2.2-2.5 times of the included angle radian of two adjacent blades of the second impeller.
10. The dual spool discharge device of claim 1, wherein:
the horizontal center distance and the vertical center distance between the feeding port and the first valve core are 1.1-1.2 times of the diameter of the first impeller; the horizontal center distance between the discharge port and the second valve core is 0.2-0.3 times of the diameter of the second impeller, and the vertical center distance is 0.6-0.8 times of the diameter of the second impeller; and/or the presence of a gas in the gas,
the diameters of the first impeller and the second impeller are the same and are D, and D is larger than or equal to 250 mm; the horizontal center distance between the first valve core and the second valve core is 0.5-0.6 times of the diameter D, and the vertical center distance is 1.5-2 times of the diameter D; and/or the presence of a gas in the gas,
the feeding channel and the horizontal plane of the feeding port form an included angle of 45 degrees; and/or the presence of a gas in the gas,
and a nitrogen purging pipe is arranged at the upper right of the second valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187968.5A CN111252480A (en) | 2020-03-17 | 2020-03-17 | Double-valve-core discharging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187968.5A CN111252480A (en) | 2020-03-17 | 2020-03-17 | Double-valve-core discharging device |
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| CN111252480A true CN111252480A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010187968.5A Pending CN111252480A (en) | 2020-03-17 | 2020-03-17 | Double-valve-core discharging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634035A (en) * | 2022-04-27 | 2022-06-17 | 马鞍山钢铁股份有限公司 | Improvement method of discharging adjusting device of star-shaped discharger |
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2020
- 2020-03-17 CN CN202010187968.5A patent/CN111252480A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634035A (en) * | 2022-04-27 | 2022-06-17 | 马鞍山钢铁股份有限公司 | Improvement method of discharging adjusting device of star-shaped discharger |
| CN114634035B (en) * | 2022-04-27 | 2024-05-24 | 马鞍山钢铁股份有限公司 | Improvement method of discharging adjusting device of star-shaped discharger |
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