CN214514334U

CN214514334U - Lime slurry pulping system

Info

Publication number: CN214514334U
Application number: CN202120853926.0U
Authority: CN
Inventors: 石闯; 甘雷尚; 王秋乐; 史佳鑫
Original assignee: Beijing Nangong Biomass Energy Co ltd
Current assignee: Beijing Nangong Biomass Energy Co ltd
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2021-10-29
Anticipated expiration: 2031-04-24

Abstract

The application relates to a lime slurry pulping system, which relates to the technical field of lime slurry preparation equipment and comprises a dry powder bin, a screw conveyor and a pulping tank, wherein a discharging pipe is arranged between a discharging port of the dry powder bin and a feeding port of the screw conveyor, a conveying pipe is arranged between the discharging port of the screw conveyor and the feeding port of the pulping tank, and a water inlet pipe connected with a water source is also arranged at the position of the feeding port of the pulping tank; the pulping tank comprises a weighing instrument, a tank body and a stirring mechanism, the weighing instrument is horizontally arranged, the tank body is fixed on the weighing instrument, the stirring mechanism is positioned in the tank body, and a flexible connecting pipe for connecting the conveying pipe and the water inlet pipe is arranged at the position of a feed inlet of the tank body. The application has the effect of improving the preparation precision of the lime slurry.

Description

Lime slurry pulping system

Technical Field

The application relates to the field of lime slurry preparation equipment, in particular to a lime slurry pulping system.

Background

With the continuous development of national economy, the industrial overall level of China is also greatly improved. In the field of garbage disposal, lime slurry is a very important chemical raw material, and in practical production application, the lime slurry is generally prepared by a lime pulping system.

In a traditional lime pulping system, a weighing type screw conveyor is generally adopted to weigh and convey hydrated lime into a pulping tank, then water is added into the pulping tank, and the hydrated lime and the water are stirred to realize preparation of lime slurry.

However, in the conveying process of the hydrated lime, the vibration of the pulping tank can lead to the whole platform to generate certain shaking, so that the screw conveyer can not accurately weigh the amount of the hydrated lime powder used for pulping, the preparation accuracy of the lime slurry is influenced, and the preparation accuracy of the lime slurry is to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the preparation precision of lime thick liquid, the application provides a slurrying system of lime thick liquid.

The lime slurry pulping system provided by the application adopts the following technical scheme:

a lime slurry pulping system comprises a dry powder bin, a screw conveyor and a pulping tank, wherein a discharging pipe is arranged between a discharging port of the dry powder bin and a feeding port of the screw conveyor, a conveying pipe is arranged between the discharging port of the screw conveyor and the feeding port of the pulping tank, and a water inlet pipe connected with a water source is further arranged at the position of the feeding port of the pulping tank; the pulping tank comprises a weighing instrument, a tank body and a stirring mechanism, wherein the weighing instrument is horizontally arranged, the tank body is fixed on the weighing instrument, the stirring mechanism is positioned in the tank body, and a feed inlet of the tank body is provided with a connection pipe which is connected with the conveying pipe and the flexible connecting pipe of the water inlet pipe.

By adopting the technical scheme, when the lime slurry is prepared by using the pulping system, clear water is injected into the tank body by using the water inlet pipe, and the water is weighed. And then conveying the slaked lime powder into the tank body along the conveying pipe by using a screw conveyor, and observing the numerical value change of the weighing instrument in the slaked lime powder conveying process to realize the weighing of the total weight of the slaked lime powder and the clear water, thereby indirectly weighing the weight of the slaked lime powder. When the weight of the hydrated lime powder and the weight of the clean water meet the requirements, the hydrated lime powder and the clean water are fully stirred by the stirring mechanism, and the preparation of the lime slurry is realized. Therefore, by arranging an independent weighing system, standing weighing and accurate weighing after water injection and discharge can be realized, so that accurate preparation of lime slurry is realized, and the concentration of the lime slurry is ensured.

Optionally, the stirring mechanism comprises a stirring shaft and a stirring paddle, the stirring shaft is vertically arranged, the upper end of the stirring shaft is rotatably connected with the top wall of the tank body, and the stirring paddle is fixed at the lower end of the stirring shaft; the middle position cover of (mixing) shaft is equipped with the axle sleeve, the axle sleeve with the (mixing) shaft rotates to be connected, the lower extreme of axle sleeve is provided with supplementary impeller, and be provided with on the jar body and be used for controlling the (mixing) shaft with axle sleeve orientation opposite direction pivoted actuating mechanism.

By adopting the technical scheme, when the stirring mechanism works, the driving mechanism is utilized to control the stirring shaft and the shaft sleeve to rotate towards opposite directions. At the moment, the stirring shaft and the shaft sleeve respectively drive the stirring paddle and the auxiliary impeller to synchronously rotate, and the rotation directions of the stirring paddle and the auxiliary impeller are opposite so as to control the slurry in the tank body to roll. Thereby realizing the full stirring and mixing of the lime powder and the clear water, realizing the high-quality preparation of the lime slurry and improving the product quality.

Optionally, the driving mechanism includes a driving shaft and a motor, the driving shaft is horizontally disposed inside the tank body and horizontally and rotatably connected to an inner wall of an upper end of the tank body, the motor is fixed to an outer wall of the tank body, and a crankshaft of the motor is fixed to the driving shaft; the outer walls of the upper ends of the stirring shaft and the shaft sleeve are provided with driven bevel gears, one end, deviating from the motor, of the driving shaft is provided with a driving bevel gear, and the driving bevel gear is meshed with the pair of driven bevel gears.

Through adopting above-mentioned technical scheme, when control (mixing) shaft and axle sleeve orientation opposite direction were rotatory, it is rotatory to utilize motor control drive shaft to drive bevel gear, utilizes drive bevel gear to drive a pair of driven bevel gear synchronous revolution this moment. And the rotation directions of the pair of driven bevel gears are opposite at the moment so as to control the stirring shaft and the shaft sleeve to rotate towards opposite directions. Therefore, the structure is ingenious, and the driving mechanism with stable work realizes the stable control of the rotation of the stirring shaft and the shaft sleeve in different directions, so that the stable stirring and preparation of the lime slurry are ensured.

Optionally, the stirring rake includes a plurality of puddlers, the puddler is circular-arc setting, and both ends are fixed in the lower extreme outer wall of (mixing) shaft, and it is a plurality of the puddler is followed the circumferencial direction evenly distributed of (mixing) shaft.

Through adopting above-mentioned technical scheme, when the stirring rake during operation, utilize a plurality of puddlers to stir the thick liquid, because the puddler becomes arc, consequently can increase the stirring area to the lime thick liquid to improve the stirring effect of stirring rake, in order to realize the intensive mixing and the preparation of lime thick liquid.

Optionally, a stirring plate is horizontally arranged in the middle of the stirring rod.

Through adopting above-mentioned technical scheme, through addding the stirring board, improve the stirring ability of puddler to realize lime slurry's intensive mixing, guarantee lime slurry's product quality.

Optionally, flow guide grooves arranged along the length direction of the stirring plate are arranged on two sides of the stirring plate.

Through adopting above-mentioned technical scheme, reduce the resistance between stirring board and the lime thick liquid through setting up the guiding gutter to reduce the resistance of stirring board during operation, guarantee the structural strength between stirring board and the puddler, avoid the phenomenon of rupture to appear in the stirring board.

Optionally, the auxiliary impeller includes a plurality of stirring blades, the stirring blades are uniformly distributed along the circumferential direction of the shaft sleeve, and two adjacent stirring blades are bent toward opposite directions.

Through adopting above-mentioned technical scheme, when impeller during operation, because adjacent stirring vane's the opposite direction of buckling, consequently can improve impeller's stirring effect to realize lime thick liquid's intensive mixing and preparation.

Optionally, the outer wall of the tank body is vertically provided with a sight hole.

Through adopting above-mentioned technical scheme, be convenient for observe the state of jar internal lime thick liquid through setting up the sight hole to guarantee the stable stirring preparation of lime thick liquid.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging an independent weighing system, standing weighing and accurate weighing after water injection and discharge can be realized, so that accurate preparation of lime slurry is realized, and the concentration of the lime slurry is ensured;

through setting up efficient rabbling mechanism, the thick liquid in the control jar body rolls, realizes the intensive mixing and the mixture of lime powder and clear water to realize the high quality preparation of lime thick liquid, improve the product quality.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic structural diagram of a pulping tank in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of an agitation mechanism in an embodiment of the present application.

Description of reference numerals: 1. a dry powder bin; 11. a discharge pipe; 2. a screw conveyor; 21. a delivery pipe; 3. a pulping tank; 31. a water inlet pipe; 32. a weighing instrument; 33. a tank body; 34. a sight hole; 35. a flexible connecting pipe; 4. a stirring mechanism; 41. a stirring shaft; 42. a stirring paddle; 43. a stirring rod; 44. a stirring plate; 45. a diversion trench; 46. a shaft sleeve; 47. an auxiliary impeller; 48. a stirring blade; 5. a drive mechanism; 51. a drive shaft; 52. a motor; 53. a driven bevel gear; 54. a drive bevel gear.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a lime slurry pulping system. Referring to fig. 1, the pulping system comprises a dry powder bin 1, a screw conveyor 2 and a pulping tank 3. The dry powder bin 1 is vertically arranged above the screw conveyor 2, the screw conveyor 2 is horizontally arranged, and a discharge pipe 11 is vertically and fixedly connected between a discharge hole of the dry powder bin 1 and a feed inlet of the screw conveyor 2.

Referring to fig. 1, pulping tank 3 is arranged below screw conveyer 2, a conveying pipe 21 is vertically and fixedly connected between a discharge port of screw conveyer 2 and a feed inlet of pulping tank 3, and a water inlet pipe 31 connected with a water source is arranged at the feed inlet of pulping tank 3.

When the pulping system is in operation, the water inlet pipe 31 is opened and then clean water is injected into the tank 33 by using the water inlet pipe 31. And then controlling the screw conveyor 2 to work, conveying the slaked lime powder into a discharge pipe 11 by using the screw conveyor 2, and conveying the slaked lime powder into the pulping tank 3 through the discharge pipe 11. And finally, the clear water and the hydrated lime powder are fully stirred and mixed by using the pulping tank 3 to realize the preparation of the lime slurry.

Referring to fig. 2, the pulping tank 3 includes a weighing instrument 32 and a tank body 33, the weighing instrument 32 is horizontally disposed, the tank body 33 is vertically fixed on the weighing instrument 32, and a transparent sight hole 34 is vertically provided on an outer wall of the tank body 33.

Referring to fig. 1 and 2, a pair of flexible connecting pipes 35 are disposed at the feed inlet of the tank 33, the flexible connecting pipes 35 are corrugated pipes, and the pair of flexible connecting pipes 35 are respectively connected to the conveying pipe 21 and the water inlet pipe 31.

Referring to fig. 2 and 3, the pulping tank 3 further comprises a stirring mechanism 4, and the stirring mechanism 4 is located in the tank body 33 to stir the pulp.

When lime mud is prepared, the tank 33 is equivalently erected on the scale 32 because the tank 33 is connected with the delivery pipe 21 and the water inlet pipe 31 through the flexible connection pipe 35, and thus the scale 32 can measure the weight of the empty tank.

Therefore, after the clean water is injected into the tank 33, the weighing instrument 32 can be used for weighing the total weight of the tank 33 and the water, so that the quantitative weighing of the clean water is indirectly realized. Then, when the slaked lime powder is conveyed into the pulping tank 3, the total weight of the tank body 33, the water and the slaked lime powder can be weighed out again by using the weighing instrument 32, so that the quantitative weighing of the slaked lime powder is indirectly realized.

And (3) until the clean water and the hydrated lime powder are weighed quantitatively, the accurate weighing and proportioning of the clean water and the hydrated lime powder are met so as to meet the concentration of the lime slurry after pulping. And finally, fully stirring and mixing the clear water and the hydrated lime powder by using a stirring mechanism 4 so as to realize the preparation of the lime slurry with accurate concentration.

Referring to fig. 3, the stirring mechanism 4 includes a stirring shaft 41 and a stirring paddle 42, the stirring shaft 41 is vertically disposed, and the upper end is rotatably connected to the top wall of the tank 33. The stirring paddle 42 includes a plurality of stirring rods 43, and each stirring rod 43 is disposed in an arc shape, and the middle portion of the stirring rod is bulged outwards.

Referring to fig. 3, both upper and lower ends of the stirring rod 43 are fixed to the outer wall of the lower end of the stirring shaft 41, and the stirring rods 43 are uniformly distributed along the circumferential direction of the stirring shaft 41. The middle position of puddler 43 still is provided with the stirring board 44 horizontally, and stirring board 44 is the slope setting to the guiding gutter 45 of seting up along its length direction is all provided with to the both sides of stirring board 44, in order to realize the water conservancy diversion of thick liquid, reduces the resistance between stirring board 44 and the thick liquid.

Referring to fig. 3, a sleeve 46 is sleeved at a middle position of the stirring shaft 41, and the sleeve 46 is coaxially arranged with the stirring shaft 41 and is rotatably connected with the stirring shaft 41. The tank 33 is provided with a driving mechanism 5, and the driving mechanism 5 is used for controlling the stirring shaft 41 and the shaft sleeve 46 to rotate towards opposite directions.

Referring to fig. 3, the lower end of the shaft sleeve 46 is provided with an auxiliary impeller 47 for stirring the slurry, the auxiliary impeller 47 includes a plurality of horizontally arranged stirring blades 48, the plurality of stirring blades 48 are uniformly distributed along the circumferential direction of the shaft sleeve 46, and two adjacent stirring blades 48 are bent toward opposite directions.

When the stirring mechanism 4 is operated, the driving mechanism 5 is started, and the stirring shaft 41 and the shaft sleeve 46 are controlled to rotate towards opposite directions by the driving mechanism 5. At this time, the stirring shaft 41 and the shaft sleeve 46 respectively drive the stirring paddle 42 and the auxiliary impeller 47 to synchronously and reversely rotate so as to control the slurry in the tank 33 to roll, thereby realizing the sufficient stirring of the slurry.

Referring to fig. 2 and 3, the driving mechanism 5 includes a driving shaft 51 and a motor 52, and the driving shaft 51 is horizontally disposed inside the tank 33. One end of the driving shaft 51 is horizontally and rotatably connected with the inner wall of the upper end of the tank 33, and the other end thereof horizontally extends to a position above the shaft sleeve 46. The motor 52 is fixed to an outer wall of the can 33, and a crankshaft of the motor 52 is fixed to the driving shaft 51 for controlling the driving shaft 51 to be stably rotated.

Referring to fig. 2 and 3, the stirring shaft 41 and the outer wall of the upper end of the sleeve 46 are fixed with driven bevel gears 53, and a pair of the driven bevel gears 53 are parallel to each other and have their toothed sides aligned with each other. A drive bevel gear 54 is fixed to an end of the drive shaft 51 facing away from the motor 52, and the drive bevel gear 54 is disposed between the pair of driven bevel gears 53 and engaged with the pair of driven bevel gears 53.

When the stirring shaft 41 and the shaft sleeve 46 are controlled to rotate in opposite directions, the motor 52 is started, the driving shaft 51 is controlled by the motor 52 to drive the driving bevel gears 54 to synchronously rotate, and at the moment, the driving bevel gears 54 can drive the pair of driven bevel gears 53 to synchronously rotate.

Since the splined sides of the pair of driven bevel gears 53 are aligned with each other, when the driving bevel gear 54 rotates, the pair of driven bevel gears 53 can be controlled to rotate in opposite directions, thereby controlling the agitating shaft 41 and the sleeve 46 to rotate in opposite directions.

The implementation principle of the lime slurry pulping system in the embodiment of the application is as follows: when lime mud is prepared, clean water is injected into the tank 33 and the water is weighed. The slaked lime powder is then transferred into the tank 33 and weighed. When the weight of the hydrated lime powder and the weight of the clean water meet the requirements, the hydrated lime powder and the clean water are fully stirred by the stirring mechanism 4, and the preparation of the lime slurry is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A lime slurry pulping system comprises a dry powder bin (1), a screw conveyor (2) and a pulping tank (3), wherein a discharging pipe (11) is arranged between a discharging port of the dry powder bin (1) and a feeding port of the screw conveyor (2), a conveying pipe (21) is arranged between the discharging port of the screw conveyor (2) and the feeding port of the pulping tank (3), and a water inlet pipe (31) connected with a water source is further arranged at the position of the feeding port of the pulping tank (3);

the method is characterized in that: pulping tank (3) is including weighing instrument (32), the jar body (33) and rabbling mechanism (4), weighing instrument (32) level sets up, the jar body (33) are fixed in on weighing instrument (32), rabbling mechanism (4) are located in the jar body (33), and the feed inlet position of the jar body (33) is provided with the connection conveyer pipe (21) with flexonics pipe (35) of inlet tube (31).

2. A lime slurry pulping system according to claim 1, wherein: the stirring mechanism (4) comprises a stirring shaft (41) and a stirring paddle (42), the stirring shaft (41) is vertically arranged, the upper end of the stirring shaft is rotatably connected with the top wall of the tank body (33), and the stirring paddle (42) is fixed at the lower end of the stirring shaft (41);

the middle position cover of (mixing) shaft (41) is equipped with axle sleeve (46), axle sleeve (46) with (mixing) shaft (41) rotate to be connected, the lower extreme of axle sleeve (46) is provided with auxiliary impeller (47), and be provided with on jar body (33) and be used for controlling (mixing) shaft (41) with axle sleeve (46) are towards opposite direction pivoted actuating mechanism (5).

3. A lime mud pulping system according to claim 2, wherein: the driving mechanism (5) comprises a driving shaft (51) and a motor (52), the driving shaft (51) is horizontally arranged in the tank body (33) and is horizontally and rotatably connected with the inner wall of the upper end of the tank body (33), the motor (52) is fixed on the outer wall of the tank body (33), and the crankshaft of the motor (52) is fixed with the driving shaft (51);

driven bevel gears (53) are arranged on the outer walls of the upper ends of the stirring shaft (41) and the shaft sleeve (46), a driving bevel gear (54) is arranged at one end, deviating from the motor (52), of the driving shaft (51), and the driving bevel gear (54) is meshed with the pair of driven bevel gears (53).

4. A lime mud pulping system according to claim 2, wherein: stirring rake (42) include a plurality of puddler (43), puddler (43) are circular-arc setting, and both ends are fixed in the lower extreme outer wall of (mixing) shaft (41), and it is a plurality of puddler (43) are followed the circumferencial direction evenly distributed of (mixing) shaft (41).

5. A lime mud pulping system according to claim 4, wherein: and a stirring plate (44) is horizontally arranged in the middle of the stirring rod (43).

6. A lime mud pulping system according to claim 5, wherein: and flow guide grooves (45) arranged along the length direction of the stirring plate (44) are arranged on the two sides of the stirring plate.

7. A lime mud pulping system according to claim 2, wherein: the auxiliary impeller (47) comprises a plurality of stirring blades (48), the stirring blades (48) are uniformly distributed along the circumferential direction of the shaft sleeve (46), and two adjacent stirring blades (48) are bent towards opposite directions.

8. A lime slurry pulping system according to claim 1, wherein: the outer wall of the tank body (33) is vertically provided with a sight hole (34).