阅读说明：本技术 一种石灰乳制备装置 (Lime milk preparation facilities ) 是由 李国洲 于 2020-12-15 设计创作，主要内容包括：本发明涉及一种石灰乳制备装置,包括储存装置和消化及溶解稀释装置,所述储存装置包括支撑框架和设置在支撑框架上的由上段为圆柱型腔体、下段为倒圆台型腔体组成的储料仓；所述的消化及溶解稀释装置设置在储存装置的下方,包括相互连接的消化箱本体和溶解稀释箱体,在消化箱本体的上部还设有与储料仓连接的螺旋给料装置。本发明的优点是：工序简单,不需人工操作,投资省,不会造成环境污染和人员伤害,同时还优化了氢氧化钙溶液的质量。(The invention relates to a lime milk preparation device, which comprises a storage device and a digestion and dissolution dilution device, wherein the storage device comprises a supporting frame and a storage bin which is arranged on the supporting frame and consists of a cylindrical cavity at the upper section and an inverted circular truncated cone-shaped cavity at the lower section; the digestion and dissolution dilution device is arranged below the storage device and comprises a digestion tank body and a dissolution dilution tank body which are connected with each other, and a spiral feeding device connected with the storage bin is further arranged on the upper portion of the digestion tank body. The invention has the advantages that: simple process, no need of manual operation, low investment, no environmental pollution and no harm to personnel, and simultaneously optimizes the quality of the calcium hydroxide solution.)

1. The invention relates to a lime milk preparation device, which is characterized by comprising a storage device and a digestion and dissolution dilution device,

the storage device comprises a supporting frame and a storage bin which is arranged on the supporting frame and consists of a cylindrical cavity at the upper section and an inverted circular truncated cone-shaped cavity at the lower section, an upper cover plate with a dust exhaust through hole is arranged on the cylindrical cavity, a dust removal exhaust funnel communicated with the dust exhaust through hole is arranged on the upper cover plate, a material distributor is arranged at the upper part of the cylindrical cavity in the storage bin, arch breakers are arranged around the inverted circular truncated cone-shaped cavity in the storage bin, a discharge hole and a discharge tank connected with the discharge hole are arranged at the bottom of the inverted circular truncated cone-shaped cavity, an electric gate valve I is connected onto the discharge tank through a flange, a material level meter is arranged at the top of the cylindrical cavity, a feed port A is arranged on the side wall of the upper part of the cylindrical cavity, and a powdery calcium oxide medicament feed pipe is inserted into the;

the digestion and dissolution dilution device is arranged below the storage device and comprises a digestion box body and a dissolution dilution box body which are connected with each other, a horizontal spiral stirrer and a spiral stirrer motor connected with the horizontal spiral stirrer are arranged at the lower part in the digestion tank body, the upper part of the digestion tank body is provided with a feed inlet B and an exhaust port, the exhaust port is connected with an exhaust pipe communicated with the atmosphere, a water inlet pipe A is connected to the side surface of the digestion tank body, a spiral feeding device is arranged at the upper part of the digestion tank body, the spiral feeding device consists of a feeding box, a spiral feeder arranged in the feeding box and a spiral feeder motor connected with the spiral feeder, the spiral feeder motor is arranged on the outer side of the feeding box, a feeding hole C is formed in the upper portion of the feeding box, a discharging pipe is arranged at one end of the lower portion of the feeding box, and an electric gate valve II is arranged on the discharging pipe; a discharge hole and a discharge pipe connected with the discharge hole are arranged on the side surface of the lower part of the digestion tank body, and an electric gate valve III is arranged on the discharge pipe; the feed inlet C of the spiral feeding device is connected with an electric gate valve I positioned at the upper part of the spiral feeding device through a flexible rubber joint; a discharge pipe of the spiral feeding device is used as a feeding pipe of the digestion tank body and is communicated with a feeding hole B at the upper part of the digestion tank body;

the upper part of the side wall of the dissolving and diluting box body is provided with a water feeding pipe, the lower part of the side wall is provided with a calcium hydroxide emulsion discharging pipe, the dissolving and diluting box body is also internally provided with a stirrer, and the calcium hydroxide emulsion discharging pipe is connected with a calcium hydroxide emulsion feeding device.

2. The lime milk preparation device according to claim 1, wherein an exhaust fan is connected to the top of the dedusting exhaust funnel, a dust filter cloth is arranged at the lower part of the exhaust fan, the mesh of the dust filter cloth is 300-400 meshes, and a vibration motor is arranged at one end of the dust filter cloth.

3. The lime milk preparation device according to claim 1, wherein the distributor is connected to the inner wall of the cylindrical cavity of the storage bin through a connecting arm, the distributor is divided into an upper layer and a lower layer, each distributor is conical with a small top and a large bottom, the upper and lower layers of distributors are arranged in a staggered manner, one distributor on the upper layer is located at the center of the cylindrical cavity, the two distributors on the lower layer are symmetrically arranged on the two sides of the distributor on the upper layer, and the top points of the two distributors are located outside the lower edge of the distributor on the upper layer.

4. The lime milk preparation device according to claim 1, wherein the arch breaker is four vibration exciting devices which are uniformly connected to the periphery of the cavity with the inverted circular truncated cone shape at the lower section, and each vibration exciting device is composed of a vibration exciting motor and a vibration exciter.

Technical Field

The invention belongs to the technical field of preparation of reagents in a concentrating mill, and particularly relates to a lime milk preparation device.

Background

Lime milk is currently commonly used as a medicament in ore dressing plants, for example, reverse flotation operations for iron ores commonly use lime milk as an activator for iron minerals; often, lime milk is added to the transported pulp during long distance pipeline transportation of the concentrate or tailings to form a calcium carbonate scale layer on the inner wall of the pipeline to protect the pipeline from pulp abrasion. At present, most of lime milk selected from factories is prepared by conveying bagged calcium oxide to a medicament preparation workshop through an automobile for stockpiling, manually conveying the bagged calcium oxide to a lime milk preparation stirring tank, cutting the packaging bag by a knife, discharging the calcium oxide into the stirring tank, stirring and mixing the calcium oxide with water to prepare lime milk (calcium hydroxide aqueous solution). The mode can generate a large amount of calcium oxide dust in various procedures of calcium oxide stacking, carrying, bag breaking and unloading, so as to cause environmental pollution, and the strongly alkaline calcium oxide and hydrate thereof not only can cause serious pneumoconiosis, but also can cause strong alkali damage to the respiratory system of people. By adopting the mode, the medicament amount of the stockpiling is usually more than 10 days, the stockpiling floor area is overlarge, and the factory building investment is higher. Therefore, a lime milk preparation device which has simple process, does not need manual operation, saves investment and does not cause environmental pollution and personal injury is needed to be developed.

Disclosure of Invention

The invention aims to provide a lime milk preparation device which has simple working procedures, does not need manual operation, saves investment and does not cause environmental pollution and personal injury.

The lime milk preparation device is realized by the following technical scheme:

the invention relates to a lime milk preparation device, which is characterized by comprising a storage device and a digestion and dissolution dilution device,

the storage device comprises a supporting frame and a storage bin which is arranged on the supporting frame and consists of a cylindrical cavity at the upper section and an inverted circular truncated cone-shaped cavity at the lower section, an upper cover plate with a dust exhaust through hole is arranged on the cylindrical cavity, a dust removal exhaust funnel communicated with the dust exhaust through hole is arranged on the upper cover plate, a material distributor is arranged at the upper part of the cylindrical cavity in the storage bin, arch breakers are arranged around the inverted circular truncated cone-shaped cavity in the storage bin, a discharge hole and a discharge tank connected with the discharge hole are arranged at the bottom of the inverted circular truncated cone-shaped cavity, an electric gate valve I is connected onto the discharge tank through a flange, a material level meter is arranged at the top of the cylindrical cavity, a feed port A is arranged on the side wall of the upper part of the cylindrical cavity, and a powdery calcium oxide medicament feed pipe is inserted into the;

the digestion and dissolution dilution device is arranged below the storage device and comprises a digestion box body and a dissolution dilution box body which are connected with each other, a horizontal spiral stirrer and a spiral stirrer motor connected with the horizontal spiral stirrer are arranged at the lower part in the digestion tank body, the upper part of the digestion tank body is provided with a feed inlet B and an exhaust port, the exhaust port is connected with an exhaust pipe communicated with the atmosphere, a water inlet pipe A is connected to the side surface of the digestion tank body, a spiral feeding device is arranged at the upper part of the digestion tank body, the spiral feeding device consists of a feeding box, a spiral feeder arranged in the feeding box and a spiral feeder motor connected with the spiral feeder, the spiral feeder motor is arranged on the outer side of the feeding box, a feeding hole C is formed in the upper portion of the feeding box, a discharging pipe is arranged at one end of the lower portion of the feeding box, and an electric gate valve II is arranged on the discharging pipe; a discharge hole and a discharge pipe connected with the discharge hole are arranged on the side surface of the lower part of the digestion tank body, and an electric gate valve III is arranged on the discharge pipe; the feed inlet C of the spiral feeding device is connected with an electric gate valve I positioned at the upper part of the spiral feeding device through a flexible rubber joint; a discharge pipe of the spiral feeding device is used as a feeding pipe of the digestion tank body and is communicated with a feeding hole B at the upper part of the digestion tank body;

the upper part of the side wall of the dissolving and diluting box body is provided with a water feeding pipe, the lower part of the side wall is provided with a calcium hydroxide emulsion discharging pipe, the dissolving and diluting box body is also internally provided with a stirrer, and the calcium hydroxide emulsion discharging pipe is connected with a calcium hydroxide emulsion feeding device.

Preferably, the top of the dust removal exhaust pipe is connected with an exhaust fan, the lower part of the exhaust fan is provided with dust filtering cloth, the mesh of the dust filtering cloth is 300 meshes and 400 meshes, and one end of the dust filtering cloth is provided with a vibration motor.

Preferably, the tripper passes through the linking arm and is connected with the inner wall of the cylinder type cavity of storage silo, and the tripper divide into two-layer from top to bottom, and every tripper is big end down's circular cone, and two-layer tripper crisscross settings about, and a tripper on upper strata is located the central point of cylinder type cavity and puts, and two trippers of lower floor symmetry are installed in the both sides of upper tripper, and its summit is located the outside of upper tripper lower edge.

Preferably, the arch breaker is four vibration excitation devices which are uniformly distributed and connected to the periphery of the lower section inverted circular truncated cone-shaped cavity, and each vibration excitation device is composed of a vibration excitation motor and a vibration exciter.

The invention has the advantages that:

(1) the storage device is provided with the dust removal exhaust funnel, and when the storage bin is fed, the exhaust fan is started to discharge air in the bin, so that the calcium oxide powder can enter the bin; the lower part of the exhaust fan is provided with the dust filtering cloth with 300-400 meshes, so that the extraction of fine calcium oxide dust can be effectively blocked, and the dust pollution during feeding is effectively avoided. When the feeding is finished, the vibration motor of the dust filtering cloth is started to vibrate the dust adsorbed on the dust filtering cloth back to the storage bin, so that the dust filtering cloth is cleaned and regenerated, and the blocking of the dust filtering cloth is prevented;

(2) according to the storage device, the powdery calcium oxide medicament feeding pipe feeds materials into the top end of the upper layer distributor, the transition from point distribution to circumferential distribution of the materials is realized through the conical surrounding surface of the upper layer distributor, the distribution area of the circumferential distribution is further increased through the two distributors at the lower part, the distribution in the storage bin is optimized, the effective stockpiling volume of the storage bin is enlarged, and the utilization rate of the storage bin is improved;

(3) the device can effectively eliminate the arching in the storage bin through the exciting effect of the four vibration exciters uniformly distributed at the lower part of the storage bin of the arch breaker on the materials in the storage bin, and is beneficial to the sliding discharge of the materials in the storage bin while preventing the arching and blocking of the storage bin;

(4) the digestion and dissolution dilution device provided by the invention supplies materials through the screw feeder, and realizes the adjustment of the feeding amount and the adjustment of the discharging of the storage bin by adjusting the rotating speed of the screw feeder through the variable frequency motor. The feeding amount and the rotating speed of the screw feeder are in a linear relation, the effective metering of the discharging of the storage bin can be realized by controlling the feeding time of the screw feeder, so that the amount of the material fed into the digestion and dissolution dilution device is controlled, the water feeding amount of the digestion and dissolution dilution device is further controlled, and the controllable concentration of the finished calcium hydroxide product is realized;

(5) the digestion and dissolution dilution device discharges hot water vapor generated by digestion to the outside of the lime milk preparation device through the exhaust pipe arranged at the upper part of the digestion and dissolution dilution device, so that the corrosion of alkaline water vapor to each metal part is prevented, the equipment is protected, and the continuous rise of the temperature in a workshop is avoided;

(6) the digestion and dissolution dilution device provided by the invention realizes the full mixing of calcium oxide and water to form calcium hydroxide by arranging the horizontal spiral stirrer arranged in the lower part of the digestion tank body, and the way of stirring and reacting effectively solves the agglomeration phenomenon of partial calcium oxide without stirring, thereby optimizing the digestion effect.

Drawings

FIG. 1 is a schematic structural 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.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 3, the lime milk preparation device of the present invention is realized by the following technical scheme:

the invention relates to a lime milk preparation device, which is characterized by comprising a storage device and a digestion and dissolution dilution device,

the storage device comprises a supporting frame and a storage bin which is arranged on the supporting frame 4 and consists of a cylindrical cavity 1-1 at the upper section and an inverted circular truncated cone-shaped cavity 1-2 at the lower section, an upper cover plate 1-3 with a dust exhaust through hole is arranged on the cylindrical cavity 1-1, a dust removal exhaust funnel 2 communicated with the dust exhaust through hole is arranged on the upper cover plate, a distributor 3 is arranged on the upper part of the cylindrical cavity 1-1 in the storage bin, an arch breaker 5 is arranged around the inverted circular truncated cone-shaped cavity 1-2 in the storage bin, a discharge opening and a discharge chute 6 connected with the discharge opening are arranged at the bottom of the inverted circular truncated cone-shaped cavity 1-2, an electric gate valve I7 is connected on the discharge chute through a flange, a level indicator 8 is arranged at the top of the cylindrical cavity 1-1, a feed inlet A9 is arranged on the side wall of the upper part of the cylindrical cavity, the powdery calcium oxide medicament feeding pipe 10 is inserted into the upper part of the distributor 3 of the storage bin from the feeding hole A9.

The top of the dust removal exhaust cylinder is connected with an exhaust fan 2-2, the lower part of the exhaust fan 2-2 is provided with a dust filter cloth 2-3, the mesh of the dust filter cloth 2-3 is 300 meshes and 400 meshes, and one end of the dust filter cloth 2-3 is provided with a vibrating motor 2-1. When the storage bin is fed, the exhaust fan is started to discharge air in the bin, so that the calcium oxide powder can enter the bin; the lower part of the exhaust fan is provided with the dust filtering cloth with 300-400 meshes, so that the extraction of fine calcium oxide dust can be effectively blocked, and the dust pollution during feeding is effectively avoided. When the feeding is finished, the vibration motor for opening the dust filtering cloth can vibrate the dust adsorbed on the dust filtering cloth back to the storage bin, so that the dust filtering cloth is cleaned and regenerated, and the blocking of the dust filtering cloth is prevented.

The distributor is connected with the inner wall of a cylindrical cavity 1-1 of a storage bin through a connecting arm 3-1, the distributor 3 is divided into an upper layer and a lower layer, each distributor 3 is conical, the upper layer is small in the upper part, the lower layer is large in the lower part, the upper layer distributor and the lower layer distributor are arranged in a staggered mode, one distributor on the upper layer is located at the center of the cylindrical cavity 1-1, the two distributors on the lower layer are symmetrically arranged on two sides of the distributor on the upper layer, and the top points of the two distributors on the lower layer are located on the outer. According to the invention, the powdery calcium oxide medicament feeding pipe 10 feeds the material to the top end of the upper layer distributor, the transition from point distribution to circumferential distribution of the material is realized through the conical surrounding surface of the upper layer distributor, and the distribution area of the circumferential distribution is further increased through the two distributors at the lower part, so that the distribution in the storage bin is optimized, the effective stockpiling volume of the storage bin is enlarged, and the utilization rate of the storage bin is improved.

The arch breaker 5 is provided with four vibration exciting devices which are uniformly distributed and connected to the periphery of a lower-section inverted-truncated-cone-shaped cavity 1-2, and each vibration exciting device is composed of a vibration exciting motor 5-1 and a vibration exciter 5-2. The device can effectively eliminate the arching of the storage bin through the excitation effect of the four vibration exciters on the materials in the bin, and is favorable for sliding and discharging the materials in the bin while preventing the arching and blocking of the storage bin.

The digestion and dissolution dilution device is arranged below a storage device and comprises a digestion tank body 11 and a dissolution dilution tank body 27 which are connected with each other, a horizontal spiral stirrer 17 is arranged at the lower part in the digestion tank body 11, a spiral stirrer motor 18 connected with the horizontal spiral stirrer 17 is arranged, a feed inlet B12 and an exhaust outlet 13 are arranged at the upper part of the digestion tank body 11, the exhaust outlet 13 is connected with an exhaust pipe 14 communicated with the atmosphere, a water inlet pipe A16 is also connected with the side surface of the digestion tank body 11, a spiral feeding device is also arranged at the upper part of the digestion tank body, the spiral feeding device consists of a feeding tank 19, a spiral feeder 20 arranged in the feeding tank 19 and a spiral feeder motor 21 connected with the spiral feeder 20, the spiral feeder motor is a variable frequency motor, and the spiral feeder motor 21 is arranged at the outer side of the feeding tank 19, a feed inlet C is formed in the upper part of the feed box 19, a discharge pipe 22 is arranged at one end of the lower part of the feed box 19, and an electric gate valve II 23 is arranged on the discharge pipe 22; a discharge port 24 and a discharge pipe 25 connected with the discharge port 24 are arranged on the side surface of the lower part of the digestion tank body, and an electric gate valve III 26 is arranged on the discharge pipe 25; a feed inlet C of the spiral feeding device is connected with an electric gate valve I7 positioned at the upper part of the spiral feeding device through a flexible rubber joint 15; the discharge pipe 22 of the spiral feeding device is used as a feeding pipe of the digestion tank body and is communicated with a feeding hole B12 at the upper part of the digestion tank body 11; the digestion and dissolution dilution device realizes the full mixing of calcium oxide and water to form calcium hydroxide by the built-in horizontal spiral stirrer, and the stirring and reaction mode effectively solves the problem of agglomeration of partial calcium oxide without stirring and optimizes the digestion effect.

The invention is characterized in that a water feeding pipe 28 is arranged on the upper part of the side wall of the dissolving and diluting box body 27, a calcium hydroxide emulsion discharging pipe 29 is arranged on the lower part of the side wall, a stirrer 30 is also arranged in the dissolving and diluting box body 27, and the calcium hydroxide emulsion discharging pipe 29 is connected with a calcium hydroxide emulsion feeding device.

Calcium hydroxide coming out of a discharge pipe 25 of the digestion tank body is stirred, dissolved and diluted into calcium hydroxide emulsion with the concentration of 5% -10% in a dissolving and diluting tank body 27 while adding water, and the calcium hydroxide emulsion is connected with a calcium hydroxide emulsion feeding device and used as an iron mineral activating agent commonly used for reverse flotation operation.

The lime milk preparation device adopts a two-stage preparation process of firstly digesting and then diluting calcium hydroxide, the finished product of the digestion device is calcium hydroxide emulsion, and the finished product of the dissolving and diluting device is calcium hydroxide solution with the concentration of 5-10%. Compared with the traditional one-level preparation process of directly adding water into a stirring tank for reaction and dilution, the process has the advantages that the reaction heat release process and the dilution process are independent, the blockage caused by calcium oxide agglomeration is favorably avoided, the concentrated heat extraction during digestion is favorably realized, and the quality of a calcium hydroxide solution is optimized.

The conveying device for the powdery calcium oxide medicament comprises a calcium oxide tank truck, a discharge hose and an air compressor. The jar body of tank car passes through discharge hose and likepowder calcium oxide medicament inlet pipe 10 flange joint, and the jar body is connected with the air compressor machine through connecing the trachea, and the gas bag is the vehicular with the air compressor machine.

The invention relates to a motor of an exhaust fan of a dust removal exhaust funnel and a vibration motor 2-1 of dust filtration cloth; the excitation motor of the arch breaking device, the driving motor of each discharge gate valve, the motor 21 of the spiral feeder, the motor 18 of the spiral stirrer, the closing of each valve of the water supply pipe, the stirring motor of the stirrer 30 and the material level indicator 8 in the storage bin are all connected with the control box. The whole feeding process does not need manual operation, and the whole process is closed, so that any flying dust can not be generated, and environmental pollution and personnel health injury can not be caused.

The control box of the present invention is the prior art and will not be described herein.