A kiln lining refractory material pumping system

Abstract

The present invention discloses a kiln lining refractory material pumping system, which belongs to the technical field of refractory material pumping equipment. It is characterized in that it includes a workbench, on which a raw material storage bin, a feeding mechanism and a relay pumping mechanism are installed, and the raw material storage bin is connected to the relay pumping mechanism through the feeding mechanism; the raw material storage bin includes a main bin and several auxiliary bins; a retarder is arranged in one of the auxiliary bins; the rear end of the feed plate is connected to the feeding mechanism, and the feeding mechanism can mix the materials transported through the feed plate evenly and feed them into the relay pumping mechanism to realize relay pumping. The kiln lining refractory material pumping system described in the present invention can add a retarder when premixing the materials, and realize the on-site high-level construction operation of the refractory castable through sufficient stirring and multi-stage pumping.

Description

Technical Field

[0001] The invention belongs to the technical field of refractory material pumping equipment, and in particular relates to a kiln lining refractory material pumping system. Background Art

[0002] There are many types of refractory materials in the existing technology, and refractory castables are one of the important products. Refractory castables refer to a mixture composed of refractory aggregates, binders and admixtures, which are mixed with water (or liquid binders) to form mud that can be constructed by pouring. The difference from other amorphous refractory materials is that refractory castables have a certain coagulation and hardening time after construction. Therefore, after casting and forming, it needs to be cured for a certain period of time before demoulding, and then it can be put into baking and use after a suitable period of natural curing.

[0003] When it comes to projects with higher construction locations, such as kiln linings, existing refractory castables need to be evenly mixed after being transported to the construction site. Although the premixed castable is a solid-liquid mixture and has a certain fluidity at the initial stage, it will solidify in a very short time, so it is impossible to pump the material to the construction height through a pumping device. The material will solidify in the conveying pipeline during the pumping process. The existing technology generally puts the mixed material in a barrel and pours or sprays it to the construction site. It is necessary to build scaffolding and elevators to lift the premixed castable to the construction height, which brings many inconveniences to the construction work.

[0004] In view of this, the applicant designed a kiln lining refractory material pumping system, which can add retarders when premixing materials, and realize on-site high-level construction operations of refractory castables through sufficient mixing and multi-stage pumping. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problems in the background technology and to provide a kiln lining refractory material pumping system, which can add retarders when premixing materials and realize on-site high-level construction operations of refractory castables through sufficient mixing and multi-stage pumping.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kiln lining refractory material pumping system, comprising a workbench, on which a raw material storage bin, a feeding mechanism and a relay pumping mechanism are installed, and the raw material storage bin is connected to the relay pumping mechanism through the feeding mechanism; the raw material storage bin comprises a main bin and several auxiliary bins; a retarder is arranged in one of the auxiliary bins; a main discharge port and an auxiliary discharge port are respectively provided at the bottom of the main bin and the auxiliary bin, and a discharge solenoid valve is installed on the main discharge port; two discharge ports are provided at the bottom of the raw material storage bin between the main bin and the auxiliary bin. The above tension springs are connected to the feed plate; when the discharge solenoid valve of the main material bin is closed, the tension spring drives the feed plate to the upper limit position and can block the auxiliary discharge ports of the remaining auxiliary material bins; when the discharge solenoid valve of the main material bin is opened, the material in the main material bin falls onto the feed plate, which can drive the feed plate to move downward and open the auxiliary discharge ports of the remaining auxiliary material bins, so that the materials in the main material bin and the auxiliary material bin can be discharged at the same time; the rear end of the feed plate is connected to the feeding mechanism, which can mix the materials transported through the feed plate evenly and feed them into the relay pumping mechanism to realize relay pumping.

[0007] Preferably, the feeding mechanism includes a feeding and stirring bin and a feeding guide and conveying device. The feeding and stirring bin is cylindrical, and a feeding port is opened on the outer peripheral wall of the feeding and stirring bin. A stirring device is arranged in the feeding and stirring bin, and the stirring device includes a stirring central axis, and the middle part of the stirring arm is installed on the stirring central axis, and stirring blocks are respectively installed at both ends of the stirring arm, and the outer walls of the stirring blocks are in contact with the inner walls of the feeding and stirring bin; the two ends of the stirring central axis are respectively installed on the end covers of the feeding and stirring bin through bearing seats, and one end of the stirring central axis passes through the end cover of the feeding and stirring bin and is connected to the feeding and stirring motor fixed to the outside of the end cover on this side.

[0008] Preferably, a traveling gear is installed at one end of the mixing shaft passing through the end cover of the feeding and mixing bin, an active driving gear is mounted on the motor shaft of the feeding and mixing motor, and the active driving gear and the traveling gear are meshed with each other; the feeding guide conveying device includes a conveying track, the conveying track includes a straight rod track and a semi-annular track, the semi-annular track is installed above the straight rod track, and the straight rod track is vertically installed on the workbench; an open inner track groove is provided on the front side of the conveying track, and both ends of the inner track groove are closed; a traveling rack is arranged on the outer side of the conveying track; a traveling pulley is installed in the inner track groove, an inner pulley is installed on the traveling pulley, an outer pulley is mounted on the extended end of the mixing shaft, and a tightening chain is mounted on the inner pulley and the outer pulley;

[0009] When the feeding and mixing motor is started, the traveling gear can be driven to rotate through the active driving gear, and the stirring arm and the stirring block in the feeding and mixing bin can be rotated to stir the materials in the feeding and mixing bin. At this time, the feeding port of the feeding and mixing bin is set upward; at the same time, the traveling gear is meshed with the traveling rack on the outside of the conveying track, driving the feeding and mixing bin to move along the conveying track to the end of the semi-circular track. At this time, the feeding port of the feeding and mixing bin is set downward, and the rotating stirring block can push all the materials in the feeding and mixing bin out of the feeding port.

[0010] Preferably, the relay pumping mechanism comprises at least two stages of pumping function groups, and each pumping function group is arranged end to end;

[0011] The pumping function group includes a pumping silo, a pumping pipe and a screw conveyor. The upper end of the pumping silo is open, and a spiral stirring arm is installed in the pumping silo through an electric rotating shaft; a pumping outlet is opened at the bottom of the pumping silo, and the front end of the feeding pipe of the screw conveyor is fixed on the pumping outlet, and a spiral auger is arranged in the feeding pipe, and the central axis of the spiral auger is connected to the feeding motor; the front end of the pumping pipe is installed at the rear end of the feeding pipe, and the rear end of the pumping pipe is connected to the pumping silo of the next group of pumping function groups or directly aligned with the construction surface.

[0012] Preferably, the connecting portion between the feed pipe of the screw conveyor and the feed pipe of the pump is connected by a connecting pipe sleeve, the lower part of the connecting pipe sleeve is connected to the upper end of the support rod, and the lower end of the support rod is fixed on the workbench.

[0013] Preferably, a backwashing device is further included, the backwashing device includes a backwashing nozzle, a hollow interlayer is arranged in the connecting pipe sleeve, and the backwashing nozzle is installed in the hollow interlayer through a lifting cylinder; a water pipe is arranged in the support rod, the front end of the water pipe is connected to the backwashing nozzle, and the rear end of the water pipe is connected to the cleaning water tank through a water pump; an outlet is opened on the inner wall of the hollow interlayer, and an electric switch plate is installed on the outlet; opening the electric switch plate can open the outlet, and the lifting cylinder can drive the backwashing nozzle to extend out of the outlet and perform high-pressure cleaning spraying on the feed pipe and the pump feed pipe on both sides.

[0014] Preferably, the rear end of the feed plate is hingedly connected to the extension plate, the front end of the extension plate is connected to one end of a traction rope, and the other end of the traction rope is connected to an electric winch; the electric winch is installed on the outer side wall of the raw material storage bin.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the device can add retarders when premixing materials, so that the solidification time of the refractory castable is extended to 1-4 hours, and through sufficient stirring when the material has high fluidity, multi-stage pumping is used to realize on-site high-position construction of the refractory castable.

[0016] The raw material storage bin in this device uses the discharge solenoid valve of the main bin to control the output of the main material. After the material falls onto the feed plate, the gravity of the material drives the feed plate to overcome the tension of the tension spring and move downward, and the auxiliary discharge ports of the other auxiliary bins are no longer blocked, thereby realizing the synchronous discharge of the main and auxiliary materials. The auxiliary discharge port of the auxiliary bin can be set as a movable plate-type discharge port with adjustable size, and then different auxiliary material ratios can be controlled, which is suitable for proportional mixing of refractory castables with various proportions. In order not to hinder the upward movement path of the feeding and mixing bin, the end of the feed plate is hinged with an extension plate. When the feeding and mixing bin moves upward, the extension plate is folded up to prevent the residual material from leaking from the feed plate.

[0017] The relay pumping mechanism uses a multi-stage pumping method combined with the lifting force of multiple screw conveyors to transport materials to a specified height, which can greatly reduce the difficulty of kiln lining construction.

[0018] The device is also provided with a backwashing device, which can start the flushing operation as soon as possible after the pumping operation is completed to prevent the castable material from solidifying on the inner wall of the device and affecting the use during subsequent construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the feeding mechanism;

[0021] Figure 3 This is a schematic diagram of the internal structure of the feeding and mixing bin;

[0022] In the figure: 101, traction rope; 102, electric winch; 103, main silo; 104, auxiliary silo; 105, auxiliary discharge port; 106, tension spring; 107, discharge solenoid valve; 108, feed plate; 109, extension plate; 2, feeding mechanism; 201, walking pulley; 202, conveying track; 203, walking rack; 204, inner track groove; 205, feeding and mixing silo; 206, feeding and mixing motor; 207, active drive gear; 208, walking gear; 209, feeding port; 210, mixing center shaft; 211, mixing block; 212, mixing arm; 301, pumping silo; 302, spiral mixing arm; 303, feeding motor; 304, feeding pipe; 305, support rod; 306, connecting pipe sleeve; 307, support frame; 308, pumping pipe; 4, workbench. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 , 2 3. In an embodiment of the present invention, a kiln lining refractory material pumping system includes a workbench 4, on which a raw material storage bin, a feeding mechanism 2 and a relay pumping mechanism are installed, and the raw material storage bin is connected to the relay pumping mechanism through the feeding mechanism 2; the raw material storage bin includes a main bin 103 and a plurality of auxiliary bins 104; a retarder is arranged in one of the auxiliary bins 104; a main discharge port and an auxiliary discharge port 105 are respectively opened at the bottom of the main bin 103 and the auxiliary bin 104, and a discharge solenoid valve 107 is installed on the main discharge port; the bottom of the raw material storage bin between the main bin 103 and the auxiliary bin 104 is connected to a feed plate 108 through more than two tension springs 106; when When the discharge solenoid valve 107 of the main material bin 103 is closed, the tension spring 106 drives the feed plate 108 to the upper limit position and can block the auxiliary discharge ports 105 of the remaining auxiliary material bins 104; when the discharge solenoid valve 107 of the main material bin 103 is opened, the material in the main material bin 103 falls onto the feed plate 108, which can drive the feed plate 108 to move downward and open the auxiliary discharge ports 105 of the remaining auxiliary material bins 104, so that the materials in the main material bin 103 and the auxiliary material bin 104 can be discharged at the same time; the rear end of the feed plate 108 is connected to the feeding mechanism 2, and the feeding mechanism 2 can mix the materials transported through the feed plate 108 evenly and feed them into the relay pumping mechanism to realize relay pumping.

[0025] like Figure 2 and 3 As shown, the feeding mechanism 2 includes a feeding and stirring bin 205 and a feeding guide and conveying device. The feeding and stirring bin 205 is cylindrical, and a feeding port 209 is opened on the outer peripheral wall of the feeding and stirring bin 205. A stirring device is arranged in the feeding and stirring bin 205, and the stirring device includes a stirring center axis 210. The middle part of a stirring arm 212 is installed on the stirring center axis 210, and stirring blocks 211 are respectively installed at both ends of the stirring arm. The outer wall of the stirring block 211 is in contact with the inner wall of the feeding and stirring bin 205; the two ends of the stirring center axis 210 are respectively installed on the end covers of the feeding and stirring bin 205 through bearing seats, and after one end of the stirring center axis 210 passes through the end cover of the feeding and stirring bin 205, it is connected to a feeding and stirring motor 206 fixed to the outside of the end cover on this side.

[0026] A traveling gear 208 is installed at one end of the mixing central axis 210 that passes through the end cover of the feeding and mixing bin 205, and an active driving gear 207 is installed on the motor shaft of the feeding and mixing motor 206, and the active driving gear 207 and the traveling gear 208 are meshed with each other; the feeding guide conveying device includes a conveying track 202, and the conveying track 202 includes a straight rod track and a semi-annular track, the semi-annular track is installed above the straight rod track, and the straight rod track is vertically installed on the workbench 4; an open inner track groove 204 is opened on the front side of the conveying track 202, and both ends of the inner track groove 204 are closed; a traveling rack 203 is arranged on the outer side of the conveying track 202; a traveling pulley 201 is installed in the inner track groove 204, an inner pulley is installed on the traveling pulley 201, an outer pulley is installed on the extended end of the mixing central axis 210, and a tightening chain is installed on the inner pulley and the outer pulley.

[0027] The relay pumping mechanism includes at least two stages of pumping function groups, and each pumping function group is connected end to end; the pumping function group includes a pumping silo 301, a pumping pipe 308 and a screw conveyor, the upper end of the pumping silo 301 is open, and a spiral stirring arm 302 is installed in the pumping silo 301 through an electric rotating shaft; a pumping outlet is opened at the bottom of the pumping silo 301, and the front end of the feed pipe 304 of the screw conveyor is fixed on the pumping outlet, and a spiral auger is arranged in the feed pipe 304, and the central axis of the spiral auger is connected to the feed motor 303; the front end of the pumping pipe 308 is installed at the rear end of the feed pipe 304, and the rear end of the pumping pipe 308 is connected to the pumping silo 301 of the next group of pumping function groups or directly aligned with the construction surface.

[0028] The connecting part between the feeding pipe 304 of the screw conveyor and the pump feeding pipe 308 is connected by a connecting pipe sleeve 306 , and the upper end of the support rod 305 is connected to the lower part of the connecting pipe sleeve 306 , and the lower end of the support rod 305 is fixed on the workbench 4 .

[0029] It also includes a backwashing device, which includes a backwashing nozzle. A hollow interlayer is set in the connecting pipe sleeve 306, and the backwashing nozzle is installed in the hollow interlayer through a lifting cylinder; a water pipe is set in the support rod 305, the front end of the water pipe is connected to the backwashing nozzle, and the rear end of the water pipe is connected to the cleaning water tank through a water pump; an outlet is opened on the inner wall of the hollow interlayer, and an electric switch board is installed on the outlet; opening the electric switch board can open the outlet, and the lifting cylinder can drive the backwashing nozzle to extend out of the outlet and perform high-pressure cleaning spraying into the material delivery pipe 304 and the pump delivery pipe 308 on both sides.

[0030] The rear end of the feed plate 108 is hingedly connected to the extension plate 109, the front end of the extension plate 109 is connected to one end of the traction rope 101, and the other end of the traction rope 101 is connected to the electric winch 102; the electric winch 102 is installed on the outer side wall of the raw material storage bin.

[0031] The use of this device is as follows:

[0032] The main materials (such as aggregates, powders and other materials with a large proportion) and the auxiliary materials (such as water reducers, cement binders and retarders) are placed in the main material bin 103 and each auxiliary material bin 104 respectively, and the discharge solenoid valve 107 of the main material bin 103 is turned on to control the main material to fall onto the conveying plate 108. The gravity of the materials drives the conveying plate 108 to overcome the tension of the tension spring 106 and move downward, and the auxiliary discharge ports 105 of the other auxiliary material bins 104 are no longer blocked, thereby realizing the synchronous discharge of the main and auxiliary materials.

[0033] All materials are fed into the feeding and mixing bin 205 through the feeding plate 108 and the extension plate 109, and then the feeding and mixing motor 206 is started, and the traveling gear 208 is driven to rotate through the active driving gear 207, and the stirring arm 212 and the stirring block 211 in the feeding and mixing bin 205 are rotated to stir the materials in the feeding and mixing bin 205. At this time, the feeding port 209 of the feeding and mixing bin 205 is set upward; at the same time, the traveling gear 208 is meshed with the traveling rack 203 on the outer side of the conveying track 202, driving the feeding and mixing bin 205 to move along the conveying track 202 to the end of the semi-circular track. At this time, the feeding port 209 of the feeding and mixing bin 205 is set downward, and the rotating stirring block 211 can push all the materials in the feeding and mixing bin 205 out of the feeding port 209.

[0034] The material enters the pumping silo 301 of the first-stage pumping functional group at the bottom, and is further stirred by the spiral stirring arm 302. The further stirred material is transported upward along the screw conveyor feed pipe 304 on the pumping outlet, and is transported to the pumping silo 301 of the next pumping functional group through the pumping pipe 308 or directly to the construction surface. The second and above pumping silos 301 are respectively installed on the support frame 307. The higher the height of the pumping silo 301 at the rear end of the process is, the more staged lifting pumping can be achieved, so as to avoid using only a single pumping functional group, whose screw conveyor is limited in pumping height and cannot transport the material to the preset height.

[0035] After the material is transported, the flushing operation should be started as soon as possible to prevent the castable from solidifying on the inner wall of the device and affecting its use during subsequent construction operations.

[0036] It should be pointed out that the retarder described in the present invention is a cement retarder in the prior art, which can be purchased from the market. The patent publication number is CN 108585583B and the patent name is "A Modified Aluminate Cement Retarder and Its Preparation Method and Application", which is the corresponding retarder preparation technology. Its principle and use method will not be repeated here. The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and its inventive concept of the present invention, shall be equivalently replaced or changed, and it shall be covered within the protection scope of the present invention.

Claims

1. A kiln lining refractory material pumping system, characterized in that: The invention comprises a workbench, on which a raw material storage bin, a feeding mechanism and a relay pumping mechanism are installed, and the raw material storage bin is connected to the relay pumping mechanism through the feeding mechanism; the raw material storage bin comprises a main bin and several auxiliary bins; a retarder is arranged in one of the auxiliary bins; a main discharge port and an auxiliary discharge port are respectively provided at the bottom of the main bin and the auxiliary bin, and a discharge solenoid valve is installed on the main discharge port; the bottom of the raw material storage bin between the main bin and the auxiliary bin is connected to a feed plate through more than two tension springs; when the main bin is closed, When the discharge solenoid valve of the main silo is opened, the tension spring drives the feed plate to the upper limit and can block the auxiliary discharge ports of the other auxiliary silos; when the discharge solenoid valve of the main silo is opened, the material in the main silo falls onto the feed plate, which can drive the feed plate to move downward and open the auxiliary discharge ports of the other auxiliary silos, so that the materials in the main silo and auxiliary silos can be discharged at the same time; the rear end of the feed plate is connected to the feeding mechanism, which can mix the materials transported by the feed plate evenly and feed them into the relay pumping mechanism to realize relay pumping; The feeding mechanism includes a feeding and stirring bin and a feeding guide and conveying device. The feeding and stirring bin is cylindrical, and a feeding port is provided on the outer peripheral wall of the feeding and stirring bin. A stirring device is arranged in the feeding and stirring bin, and the stirring device includes a stirring center shaft, and the middle part of a stirring arm is installed on the stirring center shaft, and stirring blocks are respectively installed at both ends of the stirring arm, and the outer wall of the stirring block is in contact with the inner wall of the feeding and stirring bin; the two ends of the stirring center shaft are respectively installed on the end covers of the feeding and stirring bin through bearing seats, and one end of the stirring center shaft passes through the end cover of the feeding and stirring bin, and is connected to a feeding and stirring motor fixed to the outside of the end cover on this side; A travel gear is installed at one end of the mixing shaft passing through the end cover of the feeding mixing bin, and an active drive gear is installed on the motor shaft of the feeding mixing motor, and the active drive gear and the travel gear are meshed with each other; the feeding guide conveying device includes a conveying track, and the conveying track includes a straight rod track and a semi-ring track, the semi-ring track is installed above the straight rod track, and the straight rod track is vertically installed on the workbench; an open inner track groove is opened on the front side of the conveying track, and both ends of the inner track groove are closed; a travel rack is arranged on the outer side of the conveying track; a travel pulley is installed in the inner track groove, an inner pulley is installed on the travel pulley, an outer pulley is installed on the extended end of the mixing shaft, and a tightening chain is installed on the inner pulley and the outer pulley; When the feeding and mixing motor is started, the traveling gear can be driven to rotate through the active driving gear, and the stirring arm and the stirring block in the feeding and mixing bin can be rotated to stir the materials in the feeding and mixing bin. At this time, the feeding port of the feeding and mixing bin is set upward; at the same time, the traveling gear is meshed with the traveling rack on the outside of the conveying track, driving the feeding and mixing bin to move along the conveying track to the end of the semi-circular track. At this time, the feeding port of the feeding and mixing bin is set downward, and the rotating stirring block can push all the materials in the feeding and mixing bin out of the feeding port.

2. A kiln lining refractory material pumping system according to claim 1, characterized in that: The relay pumping mechanism comprises at least two stages of pumping function groups, and each pumping function group is arranged end to end; The pumping function group includes a pumping silo, a pumping pipe and a screw conveyor. The upper end of the pumping silo is open, and a spiral stirring arm is installed in the pumping silo through an electric rotating shaft; a pumping outlet is opened at the bottom of the pumping silo, and the front end of the feeding pipe of the screw conveyor is fixed on the pumping outlet, and a spiral auger is arranged in the feeding pipe, and the central axis of the spiral auger is connected to the feeding motor; the front end of the pumping pipe is installed at the rear end of the feeding pipe, and the rear end of the pumping pipe is connected to the pumping silo of the next group of pumping function groups or directly aligned with the construction surface.

3. A kiln lining refractory material pumping system according to claim 2, characterized in that: The connecting part of the material delivery pipe of the screw conveyor and the material delivery pipe of the pump is connected through a connecting pipe sleeve, the lower part of the connecting pipe sleeve is connected to the upper end of the support rod, and the lower end of the support rod is fixed on the workbench.

4. A kiln lining refractory material pumping system according to claim 3, characterized in that: It also includes a backwashing device, which includes a backwashing nozzle. A hollow interlayer is arranged in the connecting pipe sleeve, and the backwashing nozzle is installed in the hollow interlayer through a lifting cylinder; a water pipe is arranged in the support rod, the front end of the water pipe is connected to the backwashing nozzle, and the rear end of the water pipe is connected to the cleaning water tank through a water pump; an outlet is opened on the inner wall of the hollow interlayer, and an electric switch plate is installed on the outlet; opening the electric switch plate can open the outlet, and the lifting cylinder can drive the backwashing nozzle to extend out of the outlet and perform high-pressure cleaning spraying into the material delivery pipe and the pump delivery pipe on both sides.

5. A kiln lining refractory material pumping system according to claim 4, characterized in that: The rear end of the feed plate is hingedly connected to the extension plate, the front end of the extension plate is connected to one end of a traction rope, and the other end of the traction rope is connected to an electric winch; the electric winch is installed on the outer side wall of the raw material storage bin.

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