CN112496256A - Automatic production line for sand powder for metallurgical casting - Google Patents
Automatic production line for sand powder for metallurgical casting Download PDFInfo
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- CN112496256A CN112496256A CN202011273566.3A CN202011273566A CN112496256A CN 112496256 A CN112496256 A CN 112496256A CN 202011273566 A CN202011273566 A CN 202011273566A CN 112496256 A CN112496256 A CN 112496256A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/045—Devices having a horizontal stirrer shaft in a fixed receptacle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/10—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
Abstract
The invention relates to an automatic production line of sand powder for metallurgical casting, which comprises a crusher, a grinder, a proportioning machine, a granulator and a rotary calcining furnace which are sequentially arranged, wherein a cage-shaped rotor in the grinder is connected with an electrostatic dust collector which is connected with a first fan, the bottom of a distributing device at the bottom of the electrostatic dust collector is provided with a magnetic separation and impurity removal device, a horizontal stirrer and a first auger are arranged in the proportioning machine, a cyclone dust collector and a second fan are arranged between an air inlet pipe and an air outlet pipe of a first feeding shell of the rotary calcining furnace, one side of a second discharging shell of an air cooling rotary cylinder is provided with a screening device, the whole production line is automatically produced, the quantity of processing and transferring equipment is simplified, the equipment cost and the occupied space are obviously reduced, the treatment capacity is increased, and the quality control and production of the metallurgical casting sand powder with water content, magnetic impurities, different particle sizes and different raw materials are realized, the processing treatment efficiency and the processing treatment effect are improved, so that the smelting and casting sand powder production requirements of various requirements can be met by one set of equipment in continuous production.
Description
Technical Field
The invention relates to an automatic production line of sand powder for metallurgical casting, and belongs to the technical field of production equipment of sand powder for metallurgical casting.
Background
The smelting and casting sand powder such as ceramsite deslagging sand, carburant, purifying agent and the like is used for removing molten iron and molten steel impurities in the smelting and casting industry or additionally adding steel making, iron making and carburant and the like, is beneficial to effectively preventing the slag inclusion defect of castings, improving the internal quality of the castings, improving the yield of the castings and reducing the production cost, and is widely used. Smelt the production technology of casting sand powder and generally adopt breakage, the grinding, the batching, pelletization, the production flow of calcination produces, the raw materials that works as smelting casting sand powder is different, broken demand is different, under grit water content difference and the influence of calcination temperature, one set of production facility can't satisfy multiple processing demand, its production line still exists processing and transshipment equipment in large quantity simultaneously, impurity removal efficiency is relatively poor, equipment cost is high, occupation space is big, the handling capacity is little, it is difficult to obtain effective utilization to calcine wind heat energy, the great scheduling problem of production line raise dust, thereby be difficult to satisfy the production and processing of multiple smelting casting sand powder.
Disclosure of Invention
The invention aims to provide an automatic production line of sand powder for metallurgical casting, which is used for automatically producing the whole production line, simplifies the quantity of processing and transferring equipment, obviously reduces the equipment cost and the occupied space, increases the treatment capacity, realizes the quality control and production of the metallurgical casting sand powder with water content, magnetic impurities, different particle sizes and different raw materials, improves the processing treatment efficiency and effect, and is convenient for continuous production, and one set of equipment meets the production requirements of the metallurgical casting sand powder with various requirements.
The invention is realized by the following technical scheme:
an automatic production line for sand powder for metallurgical casting comprises a crusher, a grinding machine, a proportioning machine, a granulator and a rotary calcining furnace which are sequentially arranged, wherein a feed inlet is formed in the side top of the grinding machine, an air inlet is formed in the side bottom of the grinding machine, a grinding part and a cage-shaped rotor positioned at the top of the grinding part are arranged in the grinding machine, an air outlet of the cage-shaped rotor is connected with an electrostatic dust collector, a first fan is connected between an air outlet of the electrostatic dust collector and the air inlet of the grinding machine, at least one outlet is formed in the bottom of the electrostatic dust collector, a material distribution device is arranged at the bottom of the outlet of the electrostatic dust collector, and a magnetic separation;
the material distributing device is externally provided with a support frame connected with the magnetic separation impurity removing device, the support frame is provided with a hopper positioned at the top of the material distributing device, the bottom of the electrostatic dust collector is provided with a second auger connected with the hopper, two sides of the material distributing device are provided with at least two guide rods penetrating through the support frame, the guide rods are provided with springs positioned between the support frame and the material distributing device, the material distributing device is internally provided with a plurality of first scattering parts, the bottom of the material distributing device is provided with an excitation motor, the magnetic separation device is internally provided with at least three magnetic separation cylinders which synchronously rotate and are distributed in a triangular manner, and the bottoms of the magnetic separation cylinders are respectively provided;
a horizontal stirrer and a first auger positioned at the bottom of the horizontal stirrer are arranged in the batching machine, an outlet of the first auger is connected with the granulator, a large spiral belt and a small spiral belt which are opposite to each other in spiral are arranged on the horizontal stirrer, a baffle is arranged at the bottom of the batching machine, a support shaft penetrating through the batching machine is arranged at one end of the baffle, a driving arm which deflects synchronously is arranged on the support shaft, a hydraulic cylinder is arranged on the driving arm, and the hydraulic cylinder and a hydraulic rod of the hydraulic cylinder are respectively hinged on the batching machine and the driving arm;
a first feeding shell and a first discharging shell which are fixed are arranged at two ends of the rotary calcining furnace, an air inlet pipe and a smoke outlet pipe are arranged on the first feeding shell, a cyclone dust collector and a second fan which are connected are arranged between the air inlet pipe and the smoke outlet pipe, and a first connecting pipe and a second connecting pipe are respectively arranged between the first fan and the second fan and between the cyclone dust collector and the second fan;
the granulator, the rotary calcining furnace and the air-cooled rotary drum are all obliquely arranged, a rotary drive is arranged outside the granulator, a third auger is arranged on the first feeding shell, and a spirally arranged material carrying plate and a plurality of T-shaped scattering plates spirally arranged at intervals are arranged on the rotary furnace body;
the first discharging shell is connected with a second feeding shell, the end part of the second feeding shell is connected with a rotary air-cooling rotary drum, the tail end of the air-cooling rotary drum is provided with a second discharging shell, one side of the second discharging shell is provided with a screening device, the top of the screening device is provided with a dust hood, and a third connecting pipe is arranged between the dust hood, the second feeding shell and an air inlet of the cyclone dust collector;
a fixed water cooling jacket is arranged outside the air-cooled rotary drum, rotary supports are arranged between the water cooling jacket and the air-cooled rotary drum and outside the granulator and the calcining rotary furnace, a plurality of second scattering pieces which are spirally arranged at intervals are arranged inside the air-cooled rotary drum, and each second scattering piece comprises a plurality of V-shaped plates arranged around the air-cooled rotary drum and annular plates connected to the end parts of the V-shaped plates;
a first lifting machine is arranged between the bottom of the crusher and the feed inlet of the grinding machine, a second lifting machine is arranged between the bottom of the magnetic separation impurity removal device and the proportioning machine, a third lifting machine is arranged between the outlet of the granulator and the feed shell, and a fourth lifting machine is arranged between the air-cooled rotary drum and the screening device;
the first connecting pipe is positioned between the air inlet of the second fan and the air outlet of the cyclone dust collector and the air inlet of the first fan, or between the air outlet of the second fan and the air inlet pipe of the first feeding shell and the air outlet of the second fan, the second connecting pipe is positioned between the air outlet of the cyclone dust collector and the air inlet of the first fan, and the one-way solenoid valves are arranged on the first connecting pipe, the second connecting pipe, the first connecting pipe and the second connecting pipe, the second fan and the air inlet pipe, and the third connecting pipe.
The invention has the beneficial effects that:
(1) the whole production line is automatically produced, the number of processing and transferring equipment is simplified, the equipment cost and the occupied space are obviously reduced, the treatment capacity is increased, the large block raw material of the smelting and casting sand powder is primarily crushed by a crusher and further refined and ground by a grinder, a first fan generates suction, the suction is separated by a cage-shaped rotor and collected by an electrostatic dust collector, and the material with proper particle size is sent to a distributing device;
(2) the distributing device generates vibration through an excitation motor, reciprocates left and right displacement under the action of a guide rod and a spring, and is scattered through a plurality of first scattering pieces to form a uniform wide material curtain to fall into the magnetic separation impurity removal device, and the three magnetic separation cylinders are used for gradually separating materials containing iron and other magnetic substances with different amounts through a V-shaped guide plate so as to be compounded according to requirements;
(3) the horizontal stirrer is adopted to increase the feeding space and reduce the feeding height, the hydraulic cylinder pushes or pulls the driving arm and controls the deflection opening of the baffle plate, radial convection is formed by a large spiral belt and a small spiral belt which are opposite to each other and spiral, the exchange mixing efficiency is improved, and the materials are intensively conveyed to the granulator for granulation through the first auger;
(4) the calcining rotary furnace is dedusted by the cyclone deduster and is dragged by the second fan to preheat the materials in the first feeding shell so as to improve the calcining efficiency, the T-shaped scattering plate with the material plate ensures the uniform calcining treatment of heat, the air-cooled rotary cylinder is subjected to air cooling and water cooling combined heat exchange so as to reduce the influence of ambient temperature, and the second fan is used for dragging and utilizing the wind heat energy of calcining and air cooling heat exchange to be used for calcining preheating or grinding after the first connecting pipe is opened so as to control the water content of the raw materials, so that the energy consumption is saved;
(5) the cooled material can be transferred to a grinder for grinding and collecting or a screening machine for screening to obtain a finished product, the production requirements of the metallurgical and casting sand powder with different particle sizes are met, and the second connecting pipe and the third connecting pipe are opened and pulled by the first fan to avoid dust raising of the screening machine;
to sum up, realized the quality control and the production of the smelt casting sand powder of water content, magnetic impurity, different particle sizes, different raw materials, improved processing treatment efficiency and effect to continuous production, one set of equipment satisfy the smelt casting sand powder production demand of multiple demand.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is an enlarged view of a portion B of fig. 1.
FIG. 4 is a perspective view of the distributing device and the magnetic separation and impurity removal device of the present invention.
FIG. 5 is a perspective view of the dispensing machine of the present invention with the top omitted.
FIG. 6 is a perspective view of a rotary calcining furnace according to the present invention.
FIG. 7 is a perspective view of the air-cooled rotary drum of the present invention.
The labels in the figure are: the crusher 1, the grinder 2, the proportioning machine 3, the granulator 4 and the calcining rotary furnace 5, the grinding part 6, the cage rotor 7, the electrostatic precipitator 8, the first fan 9, the distributing device 10, the magnetic separation and impurity removal device 11, the support frame 12, the hopper 13, the second auger 14, the guide rod 15, the spring 16, the first scattering part 17, the excitation motor 18, the magnetic separation cylinder 19, the V-shaped guide plate 20, the horizontal stirrer 21, the first auger 22, the large spiral belt 23, the small spiral belt 24, the baffle 25, the support shaft 26, the drive arm 27, the hydraulic cylinder 28, the first feeding shell 29, the first discharging shell 30, the air inlet pipe 31 and the air outlet pipe 32, the cyclone dust collector 33 and the second fan 34, the first connecting pipe 35 and the second connecting pipe 36, the rotary drive 37, the third auger 38, the belt material plate 39, the T-shaped scattering plate 40, the second feeding shell 41, the air-cooled rotary cylinder 42, the second discharging shell 43 and the sieving device 44, the device comprises a dust hood 45, a third connecting pipe 46, a water cooling jacket 47, a rotary support 48, a second scattering piece 49, a V-shaped plate 491, an annular plate 492, a first lifter 50, a second lifter 51, a third lifter 52, a fourth lifter 53 and a one-way solenoid valve 54.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
An automatic production line for sand powder for metallurgical casting comprises a crusher 1, a grinding machine 2, a proportioning machine 3, a granulator 4 and a rotary calcining furnace 5 which are sequentially arranged, wherein a feed inlet is formed in the top of the side of the grinding machine 2, an air inlet is formed in the bottom of the side of the grinding machine 2, a grinding part 6 and a cage-shaped rotor 7 located at the top of the grinding part 6 are arranged inside the grinding machine 2, an air outlet of the cage-shaped rotor 7 is connected with an electrostatic dust collector 8, a first fan 9 is connected between an air outlet of the electrostatic dust collector 8 and the air inlet of the grinding machine 2, at least one outlet is formed in the bottom of the electrostatic dust collector 8, a material distribution device 10 is arranged at the bottom of the outlet of the electrostatic dust collector 8;
a support frame 12 connected with a magnetic separation impurity removal device 11 is arranged outside the material distribution device 10, a hopper 13 positioned at the top of the material distribution device 10 is arranged on the support frame 12, a second auger 14 connected with the hopper 13 is arranged at the bottom of the electrostatic dust collector 8, at least two guide rods 15 penetrating through the support frame 12 are arranged on two sides of the material distribution device 10, springs 16 positioned between the support frame 12 and the material distribution device 10 are arranged on the guide rods 15, a plurality of first scattering pieces 17 are arranged in the material distribution device 10, an excitation motor 18 is arranged at the bottom of the material distribution device 10, at least three magnetic separation cylinders 19 which synchronously rotate and are distributed in a triangular mode are arranged in the magnetic separation device, and inverted V-shaped guide plates 20 are arranged at the bottoms of the magnetic;
a horizontal stirrer 21 and a first auger 22 positioned at the bottom of the horizontal stirrer 21 are arranged in the proportioning machine 3, an outlet of the first auger 22 is connected with the granulator 4, a large spiral belt 23 and a small spiral belt 24 which are opposite to each other and spiral are arranged on the horizontal stirrer 21, a baffle 25 is arranged at the bottom of the proportioning machine 3, one end of the baffle 25 is provided with a support shaft 26 penetrating through the proportioning machine 3, the support shaft 26 is provided with a driving arm 27 which deflects synchronously, the driving arm 27 is provided with a hydraulic cylinder 28, and hydraulic rods of the hydraulic cylinder 28 and the hydraulic cylinder 28 are respectively hinged on the proportioning machine 3 and the driving arm 27;
a first fixed feeding shell 29 and a first fixed discharging shell 30 are arranged at two ends of the rotary calcining kiln 5, an air inlet pipe 31 and a smoke outlet pipe 32 are arranged on the first feeding shell 29, a cyclone dust collector 33 and a second fan 34 which are connected are arranged between the air inlet pipe 31 and the smoke outlet pipe 32, and a first connecting pipe 35 and a second connecting pipe 36 are respectively arranged between the first fan 9 and the second fan 34 and the cyclone dust collector 33;
the granulator 4, the calcining rotary furnace 5 and the air-cooled rotary drum 42 are all obliquely arranged, a rotary drive 37 is arranged outside the granulator, a third auger 38 is arranged on the first feeding shell 29, and a spirally arranged material carrying plate 39 and a plurality of T-shaped scattering plates 40 spirally arranged at intervals are arranged on the rotary furnace body;
the first discharging shell 30 is connected with a second feeding shell 41, the end part of the second feeding shell 41 is connected with a rotary air-cooling rotary drum 42, the tail end of the air-cooling rotary drum 42 is provided with a second discharging shell 43, one side of the second discharging shell 43 is provided with a screening device 44, the top of the screening device 44 is provided with a dust hood 45, and a third connecting pipe 46 is arranged between the dust hood 45 and the second feeding shell 41 as well as the air inlet of the cyclone dust collector 33;
a fixed water cooling jacket 47 is arranged outside the air-cooled rotary drum 42, rotary supports 48 are arranged between the water cooling jacket 47 and the air-cooled rotary drum 42 and outside the granulator 4 and the calcining rotary furnace 5, a plurality of second scattering pieces 49 which are spirally arranged at intervals are arranged inside the air-cooled rotary drum, and each second scattering piece 49 comprises a plurality of V-shaped plates 491 arranged around the air-cooled rotary drum 42 for one circle and an annular plate 492 connected to the end of the V-shaped plate 491;
a first elevator 50 is arranged between the bottom of the crusher 1 and the feed inlet of the grinding machine 2, a second elevator 51 is arranged between the bottom of the magnetic separation impurity removal device 11 and the proportioning machine 3, a third elevator 52 is arranged between the outlet of the granulator 4 and the feed shell, and a fourth elevator 53 is arranged between the air-cooled rotary cylinder 42 and the screening device 44;
the first connecting pipe 35 is located between an air inlet of the second fan 34 and an air outlet of the cyclone dust collector 33 and an air inlet of the first fan 9, or between an air outlet of the second fan 34 and an air inlet pipe 31 of the first feeding shell 29 and an air outlet of the second fan 34, the second connecting pipe 36 is located between the air outlet of the cyclone dust collector 33 and the air inlet of the first fan 9, and the one-way solenoid valves 54 are arranged on the first connecting pipe 35, the second connecting pipe 36, the first connecting pipe 35 and the second connecting pipe 36, the second fan 34 and the air inlet pipe 31, and the third connecting pipe 46.
The working principle of the invention is as follows:
referring to the attached drawings, a large-block raw material of smelting and casting sand powder is primarily crushed by a crusher 1, lifted into a feeding hole of a grinding machine 2 by a first elevator 50 and falls into the grinding machine 2, further refined and ground by a grinding piece 6 in the grinding machine 2, wind power generated by a first fan 9 enters the grinding machine 2 from an air inlet at the bottom of the side of the grinding machine 2, an air outlet of a cage rotor 7 generates suction force under the action of an electrostatic dust collector 8 and the first fan 9, materials with proper particle size are separated by the sedimentation and the centrifugal action of the cage rotor 7 and are conveyed to the electrostatic dust collector 8 through an air outlet of the cage rotor 7, and materials with larger particle size fall into the grinding machine 2 for continuous grinding, so that the screening and transferring space is reduced, and the crushing efficiency and precision are improved;
the electrostatic dust collector 8 enables large-particle materials to fall into the second auger 14 through electrostatic dust collection effect and be discharged to the hopper 13 at the top of the distributing device 10 in a centralized mode, the distributing device 10 generates vibration through the exciting motor 18, the large-particle materials penetrate through the supporting frame 12 through the guide rod 15 to move in a reciprocating mode, the spring 16 compresses or expands in a relaxing mode, the materials entering the distributing device 10 from the hopper 13 are dispersed in the shaking process of reciprocating left and right displacement of the distributing device 10 and are scattered through the first scattering pieces 17 to form a uniform wide material curtain, the uniform wide material curtain falls into the magnetic separation impurity removal device 11, and therefore sorting efficiency and reliability of the magnetic separation impurity removal device 11 are improved;
under the magnetic separation action of three synchronously rotating magnetic separation cylinders 19 of the magnetic separation impurity removal device 11, materials with different amounts of magnetic substances such as iron and the like are separated step by step under the guide action of a V-shaped guide plate 20, and are lifted to a proportioning machine 3 through a second lifting machine 51 to be compounded with other raw materials or ingredients as required, the feeding space can be increased and the feeding height can be reduced by adopting a horizontal stirrer 21, during stirring, a hydraulic rod of a hydraulic cylinder 28 extends to push a support shaft 26 through a driving arm 27 so as to enable a baffle 25 to deflect and close a stirring paddle, and the horizontal stirrer 21 forms radial convection by a large spiral belt 23 and a small spiral belt 24 which are opposite to each other to improve the exchange mixing efficiency;
after mixing, the hydraulic rod of the hydraulic rod contracts, the support shaft 26 is pulled through the driving arm 27, the baffle 25 reversely deflects to pull the baffle 25 to open a channel, and the channel is intensively conveyed into the granulator 4 through the first auger 22, the inclined granulator 4 is supported through the rotary support 48 and is driven to rotate by the rotary drive 37 to carry out preliminary granulation, and is conveyed into the third auger 38 of the first feeding shell 29 of the rotary calcining furnace 5 through the third elevator 52, the rotary calcining furnace 5 is connected with the burner through the second feeding shell 41 at the tail part to provide a high-temperature environment, hot air or smoke is dedusted through the smoke outlet pipe 32 by the cyclone dust collector 33, is conveyed to the air inlet pipe 31 through the second fan 34, and preheats the materials in the first feeding shell 29, so as to improve the calcining efficiency and quality of the rotary calcining furnace 5;
the material enters the obliquely rotating calcining rotary furnace 5 from the first feeding shell 29, is continuously scraped along with the spirally arranged material carrying plate 39, falls onto a plurality of T-shaped scattering plates 40 spirally arranged at intervals under the action of gravity and is scattered, agglomeration is prevented, uniform calcination of heat is guaranteed, the granulated metallurgical casting sand powder is calcined, the internal tension of the molecular structure of the material is relieved, and the material directly falls through the first discharging shell 30 and enters the air-cooled rotary drum 42 through the second feeding shell 41;
the air-cooled rotary cylinder 42 is supported by a rotary support 48 of the water-cooled jacket 47, cooling water is introduced into the water-cooled jacket 47, the second fan 34 removes dust by the cyclone dust collector 33 to generate suction to the air outlet of the second feeding shell 41, the wind speed is accelerated, the materials exchange heat with flowing air in the air-cooled rotary cylinder 42 and generate cold and hot water exchange with the cooling water of the water-cooled jacket 47, and by utilizing the waste heat energy of heat exchange hot air in air cooling, the materials are fully exchanged heat to improve the cooling efficiency, reduce the production time and reduce the influence of the environmental temperature under the scattering action of the V-shaped plates 491 and the annular plates 492 of a plurality of second scattering pieces 49 which are spirally arranged at intervals;
because of different particle size requirements of the metallurgical sand powder, the cooled material can be transferred to a first hoister 50, ground by a grinder 2, sorted by a cage rotor, collected by an electrostatic dust collector 8 and then obtained into a finished product by a second auger 14, or directly fall on a fourth hoister 53, and the finished product is obtained by screening by a screening machine, during screening, the first fan 9 can generate suction to the cyclone dust collector 33 by opening a one-way electromagnetic valve 54 on a second connecting pipe 36, and the screening device 44 is subjected to dust removal treatment by a third connecting pipe 46 and a dust hood, so that dust raising and thermal influence to the second fan 34 are avoided, and continuous production is facilitated;
through opening the one-way solenoid valve 54 on the first connecting pipe 35, make wind-force intercommunication and circulation between first fan 9 and the second fan 34, utilize preheating in the wind to make to grinding machine 2 transport be hot-blast, carry out water content control to the material in the grinding process, in order to obtain the smelt cast sand powder quality of appointed demand, thereby to sum up, whole set of production line automated production, processing and transfer equipment quantity has been simplified, equipment cost and occupation space have been showing and have been reduced, the handling capacity has been increased, make full use of calcines wind heat energy, avoid the raise dust, water content has been realized, magnetic impurities, different particle diameters, the quality control and the production of the smelt cast sand powder of different raw materialss, processing treatment efficiency and effect have been improved, so that continuous production, one set of equipment satisfies the smelt cast sand powder production demand of multiple demand.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An automatic production line of sand powder for metallurgical casting comprises a crusher (1), a grinder (2), a proportioning machine (3), a granulator (4) and a rotary calcining furnace (5) which are arranged in sequence, it is characterized in that the side top of the grinding machine (2) is provided with a feeding hole, the side bottom is provided with an air inlet, the grinding part (6) and a cage-shaped rotor (7) positioned at the top of the grinding part (6) are arranged in the grinding machine (2), an air outlet of the cage-shaped rotor (7) is connected with an electrostatic dust collector (8), a first fan (9) is connected between the air outlet of the electrostatic dust collector (8) and the air inlet of the grinding machine (2), at least one outlet is formed in the bottom of the electrostatic dust collector (8), a material distribution device (10) is arranged at the bottom of the outlet of the electrostatic dust collector (8), and a magnetic separation impurity removal device (11) is arranged at the bottom of the material distribution device (10);
a horizontal stirrer (21) and a first packing auger (22) positioned at the bottom of the horizontal stirrer (21) are arranged in the proportioning machine (3), an outlet of the first packing auger (22) is connected with the granulator (4), a fixed first feeding shell (29) and a fixed first discharging shell (30) are arranged at two ends of the rotary calcining kiln (5), an air inlet pipe (31) and a smoke outlet pipe (32) are arranged on the first feeding shell (29), a cyclone dust collector (33) and a second fan (34) which are connected are arranged between the air inlet pipe (31) and the smoke outlet pipe (32), and a first connecting pipe (35) and a second connecting pipe (36) are respectively arranged between the second fan (34) and the first fan (9) and between the cyclone dust collector (33) and the first fan (9);
first ejection of compact casing (30) are connected with second feeding casing (41), second feeding casing (41) end connection has rotatory forced air cooling rotary drum (42), forced air cooling rotary drum (42) tail end is equipped with second ejection of compact casing (43), second ejection of compact casing (43) one side is equipped with screening plant (44), screening plant (44) top is equipped with suction hood (45), be equipped with third connecting pipe (46) between the air intake of suction hood (45) and second feeding casing (41) and cyclone (33).
2. The automatic production line of sand powder for metallurgical casting according to claim 1, wherein a first hoisting machine (50) is arranged between the bottom of the crusher (1) and the feed inlet of the grinding machine (2), a second hoisting machine (51) is arranged between the bottom of the magnetic separation impurity removal device (11) and the proportioning machine (3), a third hoisting machine (52) is arranged between the outlet of the granulator (4) and the feed shell, and a fourth hoisting machine (53) is arranged between the air-cooled rotary drum (42) and the screening device (44).
3. The automatic production line of sand powder for metallurgical casting according to claim 1, wherein a support frame (12) connected with the magnetic separation impurity removal device (11) is arranged outside the distributing device (10), a hopper (13) located at the top of the distributing device (10) is arranged on the support frame (12), a second packing auger (14) connected with the hopper (13) is arranged at the bottom of the electrostatic dust collector (8), at least two guide rods (15) penetrating through the support frame (12) are arranged on two sides of the distributing device (10), a spring (16) located between the support frame (12) and the distributing device (10) is arranged on each guide rod (15), a plurality of first scattering pieces (17) are arranged in the distributing device (10), and an excitation motor (18) is arranged at the bottom of the distributing device (10).
4. The automatic production line of sand powder for metallurgical casting according to claim 1, wherein at least three magnetic separation cylinders (19) which rotate synchronously and are distributed in a triangular manner are arranged in the magnetic separation device, and inverted V-shaped guide plates (20) are arranged at the bottoms of the magnetic separation cylinders (19).
5. The automatic production line of the sand powder for metallurgical casting according to claim 1, wherein the horizontal stirrer (21) is provided with a large spiral belt (23) and a small spiral belt (24) which are opposite to each other in spiral, the bottom of the dosing machine (3) is provided with a baffle (25), one end of the baffle (25) is provided with a support shaft (26) which penetrates through the dosing machine (3), the support shaft (26) is provided with a driving arm (27) which deflects synchronously, the driving arm (27) is provided with a hydraulic cylinder (28), and hydraulic rods of the hydraulic cylinder (28) and a hydraulic rod of the hydraulic cylinder (28) are respectively hinged on the dosing machine (3) and the driving arm (27).
6. The automatic production line of the sand powder for metallurgical casting according to claim 1, wherein the granulator (4), the rotary calcining furnace (5) and the rotary air-cooled drum (42) are all arranged obliquely and externally provided with a rotary drive (37), the first feeding shell (29) is provided with a third auger (38), and the rotary furnace body is provided with a spirally arranged material carrying plate (39) and a plurality of spaced spirally arranged T-shaped scattering plates (40).
7. The automatic production line of the sand powder for metallurgical casting as claimed in claim 1, wherein a fixed water cooling jacket (47) is arranged outside the air cooling rotary drum (42), rotary supports (48) are arranged between the water cooling jacket (47) and the air cooling rotary drum (42) and outside the granulator (4) and the calcining rotary furnace (5), a plurality of second scattering pieces (49) which are spirally arranged at intervals are arranged inside the air cooling rotary drum, and the second scattering pieces (49) comprise a plurality of V-shaped plates (491) which are arranged around the air cooling rotary drum (42) for one circle and annular plates (492) which are connected to the end parts of the V-shaped plates (491).
8. The automatic production line of sand powder for metallurgical casting according to any one of claims 1 to 7, wherein the first connecting pipe (35) is located between an air inlet of the second fan (34) and an air outlet of the cyclone (33) and an air inlet of the first fan (9), or between an air outlet of the second fan (34) and an air inlet pipe (31) of the first feeding housing (29) and an air outlet of the second fan (34), and the second connecting pipe (36) is located between an air outlet of the cyclone (33) and an air inlet of the first fan (9).
9. The automatic production line of sand powder for metallurgical casting according to claim 8, wherein the first connecting pipe (35), the second connecting pipe (36), the space between the first connecting pipe (35) and the second connecting pipe (36), the space between the second fan (34) and the air inlet pipe (31), and the third connecting pipe (46) are respectively provided with a one-way solenoid valve (54).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114152087A (en) * | 2021-12-10 | 2022-03-08 | 王胜东 | Cement production rotary kiln |
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| CN112496256B (en) | 2022-08-05 |
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