CN211056262U - Raw material weighing bin structure with impurity removing function - Google Patents

Abstract

The utility model relates to the technical field of weighing material bins, in particular to a weighing raw material bin structure with impurity removal function, which comprises a storage bin and a lifting machine, wherein a discharging pipe is arranged at the top of the lifting machine, the tail end of the discharging pipe is communicated with the storage bin, a weighing mechanism is arranged in the storage bin, the storage bin comprises an upper bin and a lower bin which are arranged up and down, a screening machine is arranged at the upper part in the upper bin, an iron-absorbing stone is arranged in the screening machine, and the weighing mechanism is arranged at the junction of the upper bin and the lower bin; the powder gets into the screening machine behind the discharging pipe of lifting machine and carries out impurity screening, and the last magnet of inhaling of screening machine can be with the separation of iron content impurity in the powder, and the powder after the screening edulcoration falls to weighing machine and constructs and weigh, and the powder after weighing falls to lower floor's storehouse. The utility model discloses it can detach partial impurity before weighing to have the powder for the more accurate effect of weighing result.

Description

Raw material weighing bin structure with impurity removing function

Technical Field

The utility model belongs to the technical field of the technique of feed bin of weighing and specifically relates to a former feed bin structure of weighing with impurity removal function is related to.

Background

At present, chemical industry workshop needs to store chemical raw materials, and when chemical raw materials are powder such as aluminium hydroxide, calcium carbonate or aluminium oxide, the raw materials storehouse needs to store the powder. Because the height of two stories can be reached by the raw material bin, the raw material bin is large, and the types of powder are more, the weight of the powder in the raw material bin is difficult to measure.

The prior art with the publication number of CN205262568U in the prior patent document provides a weighing bin with an improved structure, which comprises a bin, a weighing sensor group and a discharge gate, wherein the bin is a rectangular bin; the weighing sensor group comprises three weighing sensors arranged on the rectangular bin; the discharging gate is arranged at the bottom of the storage bin, and a hydraulic cylinder for controlling the discharging gate to act is arranged at the lower part of the side wall of the storage bin.

The above prior art solutions have the following drawbacks: because powdery aluminum hydroxide in chemical production often contains impurities such as ferric oxide, silicon dioxide, ferric oxide, manganese oxide and the like, and the aluminum hydroxide is impure, the weight of the aluminum hydroxide and the weight of the impurities are also counted in the weighing process, so that a large error is generated in the calculation of the weight of the aluminum hydroxide.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a former feed bin structure of weighing with remove impurity function can detach some impurity, can promote the purity of powder for the weighing result is more accurate.

The utility model aims at realizing through the following technical scheme:

the utility model provides a former feed bin structure of weighing with remove impurity function, includes storage silo and lifting machine, the top of lifting machine is equipped with the discharging pipe, the inside weighing machine that is provided with of storage silo constructs its characterized in that: the storage silo is including upper storehouse and the lower floor's storehouse of setting from top to bottom, the inside upper portion in upper storehouse is provided with the screening machine, the terminal accesss to the screening machine of discharging pipe, weighing mechanism sets up the handing-over department in upper storehouse and lower floor's storehouse.

By adopting the technical scheme, the elevator can convey the powder upwards to the upper part of the elevator, and the powder falls into the screening machine through the discharge pipe to be screened, so that impurities with larger particles are separated from powder with smaller particles, the weighing mechanism has the function of weighing the weight of the powder, and the powder falls into the lower-layer bin after being weighed; the utility model discloses a mode of physics filtration edulcoration is detached the impurity in the powder for the purity of powder improves, thereby makes the weighing result more accurate.

The utility model discloses further set up to: the screening machine sets up in the below of discharging pipe, and the screening machine includes upper ledge, lower frame and sets up the filtering mechanism between upper ledge and lower frame, the side intercommunication of upper ledge has the impurity collector, the side of lower frame is provided with the edulcoration discharge gate, the below of lower frame is provided with vibration mechanism, vibration mechanism is by power drive.

By adopting the technical scheme, the sieving machine is driven by the power supply to vibrate the vibration mechanism, the vibration is transmitted to the filtering mechanism along with the lower frame, the filtering mechanism has the function of screening powder particles, and the filtering mechanism continuously vibrates, so that the powder can be thrown up by the filtering mechanism; because the granule of powder is less, and the granule of impurity is great, and the less powder of granule passes through filter equipment and falls to the lower frame, and great granule can not pass through filtering mechanism, but is held back in the upper ledge to drop to the impurity collector along with the vibration, less granule falls at the edulcoration discharge gate of lower frame side along with the vibration, realizes realizing according to powder, impurity particle's size and impurity filtering's function.

The utility model discloses further set up to: the filter mechanism includes the filter screen, sets up the sieve in the filter screen below and sets up the springboard in the middle of filter screen and sieve, filter screen and sieve all are fixed with the inner wall circumference of upper ledge, the springboard is flexible, and be provided with movable sieve mesh in the springboard, the activity sieve mesh runs through the springboard.

By adopting the technical scheme, the filter screen has the function of filtering granular powder, the sieve plate has the functions of supporting and filtering the powder, when the powder enters the sieving machine, the powder with larger particles of the sieving machine is blocked above the filter screen, the powder with smaller particles falls down from the filter screen and enters the sieve plate, and the sieve plate further screens the powder, so that the powder is not easy to accumulate when falling, and the filtering mechanism has the effect of sieving the powder; the bounce plate arranged between the filter screen and the sieve plate has the function of transferring kinetic energy, and can move, so that the kinetic energy on the sieve plate can be transferred to the filter screen by the bounce plate, the vibration of the filter screen is intensified, powder falling on the filter screen can be fully thrown up, the distribution of the powder particles is more uniform in unit space, and the powder with smaller particles is easier to fall below the filter screen, so that the effect of screening the powder particles by the filter screen is enhanced; the springboard is penetrated with a movable sieve mesh, powder can leak from the movable sieve mesh in the screening process, and the powder is not easy to be pressed into a sheet by the springboard.

The utility model discloses further set up to: the impurity discharge gate has been seted up to the side of upper ledge, and the impurity collector can be dismantled with the impurity discharge gate and be connected, be provided with the backup pad in the upper storehouse, the impurity collector is placed in the backup pad.

Through adopting above-mentioned technical scheme, the impurity discharge gate in the upper ledge can be dismantled with the impurity collector and be connected, consequently collect full back when the impurity collector, the impurity collector can follow the separation of impurity discharge gate, in time change the impurity collector, the impurity collector is fixed mutually with the inner wall in upper storehouse, when the impurity collector loading has more large granule impurity, the inner wall in upper storehouse is fixed with the impurity collector, play the supporting role, reduce the normal vibration of screening machine of weight influence of impurity collector simultaneously, reduce the load of screening machine.

The utility model discloses further set up to: the iron-absorbing stones are arranged inside the screening machine and arranged along the outer portion of the upper frame.

Through adopting above-mentioned technical scheme, the magnet has the effect of adsorbing iron content impurity for the impurity of iron content (like ferric oxide) adsorbs in the inner wall of last frame, and iron content impurity is difficult for falling to the lower frame through filter equipment, therefore above-mentioned setting can play the effect that physical adsorption removed iron content impurity.

The utility model discloses further set up to: the weighing mechanism comprises a weighing hopper and a weighing sensor, wherein the weighing sensor is electrically connected with a weighing control instrument, a top plate is arranged above the weighing sensor, a bottom plate is arranged below the weighing sensor, the bottom plate is fixed with the periphery of the lower-layer bin, and the weighing hopper is fixed on the top plate.

By adopting the technical scheme, the weighing sensor is fixed in the periphery of the lower bin through the bottom plate, the fixed bearing effect is achieved, the top plate above the weighing sensor is abutted to the weighing hopper, and the weighing hopper is only supported by the weighing sensor, so that the pressure of the weighing sensor of the weighing hopper is the gravity borne by the weighing hopper, when powder is filled in the weighing hopper, the weight of the powder is obtained by subtracting the gravity of the weighing hopper from the pressure borne by the weighing sensor and then dividing the gravity by the gravity acceleration of a local free falling body, and the weight of the powder can be calculated.

The utility model discloses further set up to: the weighing device is characterized in that at least three weighing sensors are arranged, the weighing sensors are distributed along a circle with the center of gravity of the weighing hopper as the center of the circle, and the distances between the adjacent weighing sensors are equal.

By adopting the technical scheme, the weighing sensors are distributed around the gravity center of the weighing hopper at equal intervals, so that when the weighing hopper is loaded with powder, the circle center formed by the weighing sensors is still coincided with the gravity center of the weighing hopper, and the pressure applied to the weighing sensors is close to the sum of the gravity of the weighing hopper and the gravity of the powder, so that the weighing precision can be improved.

The utility model discloses further set up to: the weighing hopper is characterized in that a blanking port is arranged below the weighing hopper, an unloading gate is arranged below the blanking port, and the unloading gate is hinged with a hydraulic cylinder.

By adopting the technical scheme, the powder in the weighing hopper falls down from the lower part of the weighing hopper when being weighed, and the discharging gate is arranged below the blanking hopper, so that when the powder is required to fall down to the lower-layer bin, the blanking gate is opened by controlling the hydraulic cylinder, and the powder can fall down from the blanking port.

To sum up, the utility model discloses a beneficial technological effect does:

1. before weighing, the powder is physically removed of impurities mixed in the powder, the powder is separated from the impurities by using a screening machine according to the fact that the powder particles are small and the impurity particles are large, and the iron-containing impurities in the powder are separated from the powder by using a magnet, so that the purification of the powder is realized, the powder is weighed after the impurities are reduced, and the measurement precision of the weighing of the powder can be improved;

2. the filtering mechanism in the sieving machine comprises a springboard, the springboard can transmit kinetic energy on the sieve plate to the filtering screen, and the vibration amplitude of the filtering screen is increased, so that powder particles are thrown on the filtering screen and distributed more uniformly, smaller particles fall from the filtering screen more easily, and the powder is sieved more fully;

3. the weighing sensors are arranged in a plurality of numbers, and the weighing sensors are equidistantly and step-by-step by taking the gravity center of the weighing hopper as the center of a circle, so that when powder is loaded in the powder hopper, the center of a circle of the weighing sensors is always coincided with the gravity center of the weighing hopper, and the pressure applied to the weighing sensors is close to the sum of the gravity of the weighing hopper and the gravity of the powder, so that the weighing precision can be improved.

Drawings

Fig. 1 is the utility model discloses a whole structure schematic diagram of former feed bin structure of weighing with impurity removal function.

Figure 2 is the inside screening machine of storage silo and the schematic structure diagram of weighing mechanism of the utility model.

Fig. 3 is a schematic structural diagram of the filtering mechanism of the present invention.

In the figure, 1, a hoist; 11. a discharge pipe; 2. a storage bin; 21. an upper layer bin; 211. a support plate; 22. a lower layer bin; 3. screening machine; 301. screening the feed inlet; 31. putting the frame on; 311. an impurity discharge hole; 312. an impurity collector; 313. hooping; 314. a magnet; 32. a lower frame; 321. removing impurities and discharging; 33. a filtering mechanism; 331. a filter screen; 332. a sieve plate; 333. fixing the sieve pores; 334. a springboard; 335. moving the sieve pores; 34. a vibration mechanism; 4. a weighing mechanism; 41. weighing a hopper; 411. a blanking port; 412. a discharge gate; 413. a hydraulic cylinder; 42. a weighing sensor; 421. a base plate; 422. a top plate; 43. a weighing control instrument.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a former feed bin structure of weighing with remove impurity function, including storage silo 2 and lifting machine 1, internally mounted has screening machine 3 and weighing machine 4.

The hoister 1 is large mechanical equipment which is transported by changing potential energy, and the hoister 1 is large mechanical equipment with high power and high hoisting capacity. The hoister 1 drags a flexible steel wire rope (not shown in the figure) and powder through a power machine, and the powder is hoisted to the upper part of the hoister 1 from the lower part of the hoister 1, and the hoister 1 is in the prior art, so the details are not described in this embodiment.

The top position of lifting machine 1 is higher than storage silo 2, and the top intercommunication of lifting machine 1 has discharging pipe 11, and the ejection of compact is led to storage silo 2 downwards, transports the powder to storage silo 2 inside.

Referring to fig. 2, the storage bin 2 includes an upper bin 21 and a lower bin 22, an opening is provided above the upper bin 21, and the sieving machine 3 is disposed in the upper bin 21 near the opening. The top of the screening machine 3 is provided with a screening feed inlet 301, and the discharge pipe 11 is fixed with the screening feed inlet 301 of the screening machine 3.

The sieving machine 3 comprises an upper frame 31 arranged at the upper part and a lower frame 32 arranged below the upper frame 31, wherein a foreign matter discharge hole 311 is arranged on the side surface of the upper frame 31, a foreign matter collector 312 is sleeved on the foreign matter discharge hole 311, the foreign matter collector 312 is made of canvas fabric and is in a bag shape, an opening of a mouth of the foreign matter collector 312 is sleeved in the foreign matter discharge hole 311, an anchor ear 313 is sleeved on the opening of the foreign matter collector 312, and the anchor ear 313 fixes the opening of the mouth of the foreign matter collector 312 and the foreign matter discharge hole 311.

The middle part of the upper layer bin 21 is integrally provided with a support plate 211, the impurity collector 312 is placed on the support plate 211, and the support plate 211 plays a supporting role. When more bigger granule has been collected in impurity collector 312, impurity collector 312 weight increase, and backup pad 211 plays the effect of supporting impurity collector 312, reduces impurity collector 312 to the load of screening machine 3 for screening machine 3 can normally vibrate.

The outer periphery of the upper frame 31 is provided with a ring of magnet 314, the magnet 314 is in a frame shape, the shape of the magnet 314 is consistent with that of the upper frame 31, and the magnet 314 has the function of adsorbing iron-containing impurities, so that the iron-containing impurities (such as ferric oxide) are adsorbed on the inner wall of the upper frame 31 and are not easy to fall into the lower frame 32, and therefore the magnet 314 can perform the functions of physical adsorption and removal of the iron-containing impurities.

Referring to fig. 3, a trash discharge hole 321 is formed in a side surface of the lower frame 32. A filter mechanism 33 is disposed between the upper frame 31 and the lower frame 32, and the filter mechanism 33 includes a filter screen 331, a screen plate 332, and a springboard 334. The filter screen 331 is circumferentially fixed with the inner wall of the upper frame 31, and meshes of the filter screen 331 are dense, so that powder can be coarsely divided into particles; the sieve plate 332 is circumferentially fixed with the inner wall of the upper frame 31, the sieve plate 332 is arranged below the filter screen 331, a plurality of fixed sieve holes 333 are formed in the sieve plate 332, and the pore diameter of each fixed sieve hole 333 is equivalent to that of the filter screen 331; the plurality of bounce boards 334 are provided, the bounce board 334 is disposed between the filter screen 331 and the screen plate 332, and the bounce board 334 can bounce or move freely between the filter screen 331 and the screen plate 332. The bounce board 334 is provided with movable sieve holes 335, the movable sieve holes 335 penetrate through the bounce board 334, powder can leak from the movable sieve holes 335 in the screening process, and the powder is not easy to be pressed into a sheet shape by the bounce board 334. Can transmit kinetic energy to filter screen 331 on the sieve 332 for the vibration aggravation of filter screen 331, the powder that falls on filter screen 331 can be thrown by fully, and the distribution of powder size granule on the unit space is more even, thereby makes the less powder of granule change the below that falls filter screen 331, consequently plays the effect that reinforcing filter screen 331 sieves powder granule.

Referring to fig. 2, a vibration mechanism 34 is disposed below the lower frame 32, the vibration mechanism 34 is connected to an inner wall of the upper chamber 21, the vibration mechanism 34 is driven by a power supply, the vibration mechanism 34 is composed of a vibration motor, a support spring and the like (not shown in the figure), a rotor disposed in the vibration motor vibrates due to unbalance, and the larger the unbalance amount is, the larger the vibration amplitude is. The vibration mechanism 34 can perform a vibration effect, and since the vibration mechanism 34 is a prior art, it is not described herein again. The vibration mechanism 34 is driven by a power supply motor, so that the vibration mechanism 34 generates vibration, thereby driving the lower frame 32, the upper frame 31 and the filter mechanism 33 above the vibration mechanism 34 to generate vibration.

The weighing mechanism 4 is arranged at the joint of the upper layer bin 21 and the lower layer bin 22, and the upper layer bin 21 is communicated with the lower layer bin 22. Weighing mechanism 4 includes weighing sensor 42, weighing hopper 41 and weighing control instrument 43, and weighing sensor 42 and weighing control instrument 43 electric connection. The top plate 422 is connected above the weighing sensor 42, the bottom plate 421 is fixed below the weighing sensor 42, and the bottom plate 421 is fixed with the periphery of the inner wall of the lower-layer bin 22. The plurality of load cells 42 are arranged, the plurality of load cells 42 are circumferentially distributed, the load cells 42 are all arranged on a horizontal plane, the center of the circumference is consistent with the center of gravity of the weighing hopper 41 when the weighing hopper is unloaded, and the distances between the adjacent load cells 42 are equal.

The outlet of the impurity removal discharge port 321 is arranged above the weighing hopper 41, the bottom of the weighing hopper 41 is fixed with the top plate 422 by welding, the weight of the weighing hopper 41 falls on the weighing sensor 42 through the top plate 422, so that the pressure of the weighing sensor 42 of the weighing hopper 41 is the gravity borne by the weighing hopper 41, and when powder is contained in the weighing hopper, the weight of the powder is calculated by subtracting the gravity of the weighing hopper 41 from the pressure borne by the weighing sensor 42 and dividing the weight by the gravity acceleration of the local free falling body.

The weighing sensor 42 includes an elastic body and a resistance strain gauge (not shown in the figures, since the weighing sensor 42 is a prior art, details are not described in this embodiment), the elastic body generates elastic deformation under the action of external force, so that the resistance strain gauge adhered to the surface of the elastic body also generates deformation, after the resistance strain gauge deforms, the resistance value of the resistance strain gauge changes, and the resistance change is converted into an electrical signal through the weighing control instrument 43, thereby completing the process of converting the external force into the electrical signal.

The blanking mouth 411 has been seted up to the bottom of weighing hopper 41, and blanking mouth 411 department articulates through the loose leaf has the gate 412 of unloading, and the gate 412 of unloading covers blanking mouth 411 for during the powder is weighed difficult for falling lower floor's storehouse 22, the gate 412 of unloading keeps away from the one end of handing-over and articulates there is the pneumatic cylinder 413, and the other end of pneumatic cylinder 413 articulates on the inner wall of lower floor's storehouse 22. During operation, the hydraulic cylinder 413 controls the discharge gate 412 to be closed, when powder is weighed in the weighing hopper 41, when the weight of the powder reaches a preset fixed quantity, the hydraulic cylinder 413 controls the discharge gate 412 to be opened, and the powder directly falls into the lower-layer bin 22 from the discharge opening 411.

The implementation principle of the embodiment is as follows: after passing through the hoister 1, the powder rises from the bottom of the hoister 1 to the top of the hoister 1, falls into an upper frame 31 of a screening machine 3 from a discharge pipe 11 arranged at the top of the hoister 1, is screened by the screening machine 3 in a vibrating manner, larger particles are remained in the upper frame 31 and enter an impurity collector 312 arranged at the side surface of the upper frame 31, and iron-containing impurities in the powder are adsorbed on the inner wall of the upper frame 31 by a magnet 314; the powder with smaller particles falls into the lower frame 32 and falls into the weighing hopper 41 from the impurity removal discharge port 321, the weighing control instrument 43 connected with the weighing sensor 42 measures the mass of the powder in the weighing hopper 41, and after the preset weight is reached, the hydraulic cylinder 413 controls the discharge gate 412 below the weighing hopper 41 to open, and the powder directly falls into the lower bin 22.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a raw materials storehouse structure of weighing with remove impurity function, includes storage silo (2) and lifting machine (1), the top of lifting machine (1) is equipped with discharging pipe (11), storage silo (2) inside is provided with weighing machine (4), its characterized in that: storage silo (2) are including upper storehouse (21) and lower floor's storehouse (22) that set up from top to bottom, the inside upper portion in upper storehouse (21) is provided with screening machine (3), discharging pipe (11) end accesss to screening machine (3), weighing mechanism (4) set up the handing-over department in upper storehouse (21) and lower floor's storehouse (22).

2. The weighing raw material bin structure with impurity removing function according to claim 1, wherein: screening machine (3) set up in the below of discharging pipe (11), and screening machine (3) include upper ledge (31), lower frame (32) and set up filtering mechanism (33) between upper ledge (31) and lower frame (32), the side intercommunication of upper ledge (31) has impurity collector (312), the side of lower frame (32) is provided with edulcoration discharge gate (321), the below of lower frame (32) is provided with vibration mechanism (34), vibration mechanism (34) are by power drive.

3. The weighing raw material bin structure with impurity removing function as claimed in claim 2, wherein: the iron-absorbing stones (314) are arranged inside the screening machine (3), and the iron-absorbing stones (314) are arranged along the outer portion of the upper frame (31).

4. The weighing raw material bin structure with impurity removing function as claimed in claim 2, wherein: filtering mechanism (33) include filter screen (331), set up sieve (332) below filter screen (331) and set up springboard (334) in the middle of filter screen (331) and sieve (332), filter screen (331) and sieve (332) all are fixed with the inner wall circumference of upper ledge (31), springboard (334) are flexible, and be provided with movable sieve mesh (335) in springboard (334), movable sieve mesh (335) run through springboard (334).

5. The weighing raw material bin structure with impurity removing function as claimed in claim 2, wherein: impurity discharge gate (311) have been seted up to the side of upper ledge (31), impurity collector (312) can be dismantled with impurity discharge gate (311) and be connected, be provided with backup pad (211) in upper storehouse (21), impurity collector (312) are placed on backup pad (211).

6. The weighing raw material bin structure with impurity removing function according to claim 1, wherein: weighing machine constructs (4) including weighing hopper (41) and weighing sensor (42), weighing sensor (42) electric connection has weighing control instrument (43), weighing sensor (42) top is provided with roof (422), the below of weighing sensor (42) is provided with bottom plate (421), bottom plate (421) are fixed mutually with the week edge in lower floor storehouse (22), weighing hopper (41) are fixed in on roof (422).

7. The weighing raw material bin structure with impurity removing function according to claim 6, wherein: the weighing sensors (42) are at least three, the weighing sensors (42) are distributed along a circle with the center of gravity of the weighing hopper (41) as the center of the circle, and the distances between every two adjacent weighing sensors (42) are equal.

8. The weighing raw material bin structure with impurity removing function according to claim 6, wherein: the hopper weighing machine is characterized in that a blanking port (411) is arranged below the weighing hopper (41), a discharging gate (412) is arranged below the blanking port (411), and the discharging gate (412) is hinged to a hydraulic cylinder (413).

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