Impurity screening mechanism for detecting high-specific-surface sample and detection equipment

Abstract

The impurity screening mechanism comprises an impurity screening barrel with a feeding port formed in the top end, a screening plate and a conical material guide plate which are distributed in the height direction of the impurity screening barrel are arranged in the impurity screening barrel, a plurality of first material scraping rods are rotationally arranged on the upper surface of the screening plate, and a plurality of second material scraping rods are rotationally arranged on the upper surface of the conical material guide plate; the sieve plate comprises an upper-layer plate provided with first sieve holes and a lower-layer plate provided with second sieve holes, the upper-layer plate is fixedly connected with the impurity sieving barrel, the lower-layer plate can deflect relative to the upper-layer plate, so that the first sieve holes and the second sieve holes are opposite to form a first channel allowing impurities to fall down, and the first sieve holes and the second sieve holes deflect to form a second channel allowing samples to fall down; an impurity outlet communicated with the impurity collecting chamber and a plurality of discharging ports communicated with the detection box are formed in the lower portion of the impurity screening barrel, and a plurality of sealing plates used for sealing the discharging ports and the impurity outlet are arranged on the side wall of the impurity screening barrel in a sliding mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to high specific surface area particle detection technical field, specifically a kind of high specific surface sample detection sieve impurity mechanism and detection equipment. BACKGROUND

[0002] Calcium hydroxide is a high specific surface inorganic compound, commonly known as slaked lime or lime, is a white hexagonal system powder alkaline crystal, with sterilization and antiseptic ability, skin, fabric has corrosive effect, at the same time, calcium hydroxide is used to manufacture bleaching powder, hard water softener, disinfectant insecticide, depilatory for tanning, sugar refining and building materials etc..Particle size is one of important parameters influencing calcium hydroxide powder performance and quality, therefore, the particle size of calcium hydroxide powder needs to be detected, traditional particle size detection device can usually detect the particle size of a group of samples each time, in order to make detection data more accurate, average value needs to be obtained by multiple detections, and the operation process is complex, detection efficiency is low and the like.

[0003] In order to solve the above problems, the traditional particle size detection device is improved, such as China patent CN118641436A discloses a particle size detection device for barium sulfate powder detection device, including detection mechanism and driving mechanism for driving detection mechanism to run, detection mechanism includes mixing assembly for mixing calcium hydroxide powder and screening large particle impurities, the uniformly dispersed and screened powder falls to the surface of conical plate, then the powder on the surface of conical plate is scraped off by scraping rod, so that the powder is dispersed into each subassembly through the shunt pipe, and then the powder is screened by screening assembly, so that the particle size of the powder in each screening assembly is obtained, then the data obtained by each screening assembly is averaged, and the relatively accurate detection batch barium sulfate powder particle size can be obtained. However, the mixing assembly of the detection device includes filter screen, calcium hydroxide powder is placed on the filter screen, and is stirred by turning part, calcium hydroxide powder falls through the filter screen, and large particle impurities are intercepted on the surface of the filter screen, after detection, large particle impurities are taken out through feeding port, it is difficult to take out large particle impurities through small feeding port, and the taking-out process is complicated. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that large particle impurities are difficult to take out in the prior art, the utility model provides a sieve impurity mechanism and detection equipment for high specific surface sample detection, which facilitates the taking-out of large particle impurities, and the taking-out process is fast and simple, and the calcium hydroxide particle size detection efficiency is improved.

[0005] In order to achieve the above object, the utility model adopts the specific scheme of: a kind of sieve impurity mechanism for high specific surface sample detection, including the sieve impurity cylinder that top is provided with feed inlet, sieve impurity cylinder is provided with sieve plate and conical guide plate along its height direction distribution in it, the upper surface of sieve plate is rotatably provided with several first material scraping rod, the upper surface of conical guide plate is rotatably provided with several second material scraping rod, sieve plate includes the upper layer plate that is provided with first sieve hole and the lower layer plate that is provided with second sieve hole, upper layer plate is fixedly connected with sieve impurity cylinder, lower layer plate is rotatably connected with upper layer plate, and lower layer plate can be deflected relative to upper layer plate, so that first sieve hole and second sieve hole form first pass for impurity to fall down, and second pass for sample to fall down is formed by deflection of first sieve hole and second sieve hole;Sieve impurity cylinder lower part is provided with the impurity outlet that is communicated with collection impurity chamber and several discharge outlets that are communicated with detection box, and sieve impurity cylinder side wall is slidably provided with multiple sealing plates for plugging discharge outlet and impurity outlet.

[0006] As one optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: the lowest position of the impurity outlet is below the bottom end of the conical guide plate, and the highest position of the impurity outlet is above the conical guide plate.

[0007] As another optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: the impurity outlet and the collection impurity chamber are communicated through the inclined guide pipe, the top end of the guide pipe is communicated with the impurity outlet, and the bottom end of the guide pipe is communicated with the collection impurity chamber.

[0008] As another optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: a long hole is formed in the side wall of the sieve impurity cylinder, a lever is fixedly connected to the edge of the lower layer plate and extends radially, and the free end of the lever extends out of the sieve impurity cylinder through the long hole.

[0009] As another optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: a rotating shaft coaxial with the sieve impurity cylinder is rotatably arranged in the sieve impurity cylinder, and one end of the first material scraping rod and the second material scraping rod is fixedly connected to the side wall of the rotating shaft.

[0010] As another optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: the bottom end of the rotating shaft extends out of the sieve impurity cylinder and is connected to a driving motor for driving the rotation of the rotating shaft.

[0011] As another optimization scheme of the above-mentioned sieve impurity mechanism for high specific surface sample detection: a feed hopper fixedly connected to the sieve impurity cylinder is arranged above the feed inlet.

[0012] A high specific surface sample detection device includes a sieve impurity mechanism for removing impurities from the sample and several detection boxes for detecting the particle size of the sample, and the sieve impurity mechanism is the above-mentioned sieve impurity mechanism.

[0013] As an optimization scheme of the above high specific surface sample detection device, a plurality of particle screening plates are arranged along the height direction of the detection box, and an elastic scraper is arranged on the upper surface of the particle screening plate and connected with the detection box.

[0014] As another optimization scheme of the above high specific surface sample detection device, a shunt pipe is arranged between the discharge port and the detection box, the top end of the shunt pipe is connected with the discharge port, and the bottom end of the shunt pipe is connected with the detection box.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The screening mechanism for high specific surface sample detection is provided, the sample enters the screening cylinder through the feeding port and falls on the screen plate, at this time, the first screen hole and the second screen hole are inclined to form a second channel therebetween, the first scraping rod is rotated to make the sample powder fall from the second channel to the conical guide plate, the impurities are left on the upper surface of the screen plate, the second scraping rod is rotated to make the sample on the conical guide plate enter the detection box, after detection, the lower plate is rotated to make the first screen hole and the second screen hole form a first channel, the impurities fall to the conical guide plate through the first channel and are scraped into the impurity collecting chamber through the second scraping rod, the large-particle impurities are taken out, the taking-out process is simple and the detection efficiency is improved.

[0017] 2. In the present application, the screening cylinder is provided with an impurity outlet and a discharge port in the lower part, and the side wall of the screening cylinder is provided with a sealing plate capable of sealing and connecting the impurity outlet and the discharge port, that is, when the sample particle size is detected, the guide pipe is in a closed state and the shunt pipe is in a connected state, so that the sample enters the detection box; when the large-particle impurities are taken out, the guide pipe is in a connected state and the shunt pipe is in a closed state, so that the large-particle impurities smoothly enter the impurity collecting chamber. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the detection device;

[0019] Figure 2 is a schematic view when the first screen hole and the second screen hole are inclined;

[0020] Figure 3 is a schematic view when the first screen hole and the second screen hole are opposite;

[0021] 1, sieve cylinder, 101, feed hopper, 102, rotating shaft, 2, upper layer plate, 201, first sieve hole, 202, first scraping rod, 3, lower layer plate, 301, second sieve hole, 302, push rod, 4, conical guide plate, 401, second scraping rod, 5, detection box, 501, transmission shaft, 502, particle screening plate, 503, elastic scraper, 6, shunt pipe, 7, impurity collection chamber, 8, guide pipe, 801, sealing plate, 9, driving motor, 901, driving gear, 902, driven gear. DETAILED DESCRIPTION

[0022] The following will be further described in detail in combination with specific embodiments. The parts not described and disclosed in the following embodiments of the utility model should be understood as the prior art known or should be known by the person skilled in the art, for example, how the lower layer plate 3 is rotatably installed on the upper layer plate 2, how the sealing plate 801 is slidably installed on the side wall of the sieve cylinder 1, how the detection box 5 detects the granularity, etc.

[0023] Embodiment 1

[0024] A kind of sieve impurity mechanism for high specific surface sample detection, including the sieve cylinder 1 with feed inlet in top, sieve cylinder 1 includes the top plate and bottom plate arranged in parallel, top plate and bottom plate are fixedly connected by annular side plate, i.e. top plate, bottom plate and annular side plate are enclosed to form the sieve cylinder 1 of cylindrical shape;Feed inlet is arranged on the top plate of sieve cylinder 1, and is located at the center position of top plate;The top of feed inlet is provided with the feed hopper 101 fixedly connected with sieve cylinder 1, feed hopper 101 is funnel structure, small end is fixedly and sealingly connected with sieve cylinder 1, and the diameter of small end is equal to the diameter of feed inlet, the setting of feed hopper 101 facilitates high specific surface sample to enter sieve cylinder 1.Sieve cylinder 1 is provided with sieve plate and conical guide plate 4 distributed along its height direction, wherein, sieve plate includes upper layer plate 2 with first sieve hole 201 and lower layer plate 3 with second sieve hole 301, upper layer plate 2 and lower layer plate 3 are circular plate structure, the diameter of upper layer plate 2 is equal to the diameter of lower layer plate 3, lower layer plate 3 is located below upper layer plate 2, and the upper surface of lower layer plate 3 is in contact with the lower surface of upper layer plate 2;First sieve hole 201 and second sieve hole 301 are both circular holes.

[0025] The upper layer plate 2 is fixedly connected with the sieve cylinder 1, and in the embodiment, the edge of the upper layer plate 2 is fixedly and sealingly connected with the inner side wall of the sieve cylinder 1; the lower layer plate 3 is rotationally connected with the upper layer plate 2, and the lower layer plate 3 can be inclined relative to the upper layer plate 2, that is, the upper layer plate 2 and the lower layer plate 3 have two position relationships, that is, the first sieve hole 201 and the second sieve hole 301 are opposite to each other and the first sieve hole 201 and the second sieve hole 301 are inclined, the first sieve hole 201 and the second sieve hole 301 opposite to each other form a first channel for impurities to fall, and the first sieve hole 201 and the second sieve hole 301 inclined form a second channel for samples to fall. In the embodiment, a long hole is formed in the side wall of the sieve cylinder 1, and the edge of the lower layer plate 3 is fixedly connected with a pushing rod 302 extending in the radial direction thereof, and the free end of the pushing rod 302 extends out of the sieve cylinder 1 through the long hole.

[0026] The tip of the conical guide plate 4 is located on the axis of the sieve cylinder 1, and the bottom edge of the conical guide plate 4 is fixedly and sealingly connected with the inner side wall of the sieve cylinder 1.

[0027] The upper surface of the sieve plate is rotationally provided with a plurality of first scraping rods 202, and the upper surface of the conical guide plate 4 is rotationally provided with a plurality of second scraping rods 401. In the embodiment, the first scraping rod 202 and the second scraping rod 401 are long rod structures, the lower surface of the first scraping rod 202 is attached to the upper surface of the upper layer plate 2, and the lower surface of the second scraping rod 401 is attached to the upper surface of the conical guide plate. The installation mode of the first scraping rod 202 and the second scraping rod 401 is that a rotating shaft 102 coaxial with the sieve cylinder 1 is rotationally arranged in the sieve cylinder 1, the number of the first scraping rod 202 and the second scraping rod 401 is 4, and the first scraping rod 202 is uniformly distributed in the circumferential direction of the rotating shaft 102, the second scraping rod 401 is uniformly distributed in the circumferential direction of the rotating shaft 102, one end of the first scraping rod 202 and the second scraping rod 401 is fixedly connected with the side wall of the rotating shaft 102, and the other end of the first scraping rod 202 and the second scraping rod 401 extends to the inner side wall of the sieve cylinder 1. The bottom end of the rotating shaft 102 extends out of the sieve cylinder 1 and is connected with a driving motor 9 for driving the rotation thereof, and the driving shaft of the driving motor 9 is fixedly connected with the rotating shaft 102 coaxially.

[0028] The lower part of the sieve cylinder 1 is provided with a waste outlet communicated with the waste collecting chamber 7 and a plurality of discharge outlets communicated with the detection box 5, the number of the waste outlet is one, and the number of the discharge outlets is three in the embodiment, the height of the waste outlet and the discharge outlets is the same, and the waste outlet and the discharge outlets are uniformly distributed along the circumference of the sieve cylinder 1; in order to ensure that the powder and impurities can smoothly flow out from the discharge outlets and the waste outlet, the lowest position of the discharge outlets and the waste outlet is below the bottom end of the conical guide plate 4, and the highest position of the discharge outlets and the waste outlet is above the bottom end of the conical guide plate 4. A plurality of sealing plates 801 for sealing the discharge outlets and the waste outlet are slidably arranged on the side wall of the sieve cylinder 1, the sealing plates 801 are arc-shaped plates and can slide up and down along the side wall of the sieve cylinder 1, when the sealing plates 801 slide upwards, the discharge outlets and the waste outlet can be sealed, when the sealing plates 801 slide downwards, the discharge outlets or the waste outlet is opened, so that the powder flows out from the discharge outlets or the impurities flow out from the waste outlet.

[0029] In the utility model, the outer side wall of the sieve cylinder 1 is fixedly connected with the annular plate extending along the bottom plate radially, the waste collecting chamber 7 is fixed on the lower surface of the annular plate, the waste outlet is communicated with the waste collecting chamber 7 through the guide pipe 8 arranged obliquely, the top end of the guide pipe 8 is communicated with the waste outlet, the bottom end of the guide pipe 8 is communicated with the waste collecting chamber 7, the impurities fall on the conical guide plate 4 through the first channel and are scraped into the waste outlet through the second scraping rod 401, and then fall into the waste collecting chamber 7 through the guide pipe 8, so that the cleaning of the impurities is completed, the taking-out process is simple, and the detection efficiency is improved.

[0030] In the utility model, the first scraping rod 202 is provided with a brush at the abutting position with the upper layer plate 2, so that the powder remaining on the sieve plate is avoided.

[0031] The operation process of the utility model is as follows: the first sieve hole 201 and the second sieve hole 301 are deflected by driving the driving rod 302, the push plate corresponding to the waste outlet is pushed to seal the waste outlet, and the push plate corresponding to the discharge outlet is pushed to open all the discharge outlets. The high specific surface sample enters the sieve cylinder 1 from the feeding hopper 101 and falls on the upper surface of the upper layer plate 2, the driving motor 9 is started, the first scraping rod 202 rotates along the axis of the rotating shaft 102, the sample on the upper layer plate 2 is stirred to be more uniform, and in the rotating process of the first scraping rod 202, the powder falls to the conical guide plate 4 through the second channel, and the large-particle impurities remain on the upper surface of the upper layer plate 2; in the rotating process of the second scraping plate, the powder on the conical guide plate 4 is scraped to the discharge outlet, and the powder is detected through the discharge outlet and the detection box 5.

[0032] After the screening is finished, the first and second screen holes 201 and 301 are made opposite by pushing the push rod 302, the corresponding push plate of the discharge port is pushed to block the corresponding discharge port of the push plate, and the corresponding push plate of the impurity discharge port is pushed to open the impurity discharge port. The first scraping rod 202 pushes the large particle impurities to the second channel during the rotation process, and the large particle impurities fall on the upper surface of the conical guide plate 4 through the second channel; the second scraping rod 401 scrapes the large particle impurities on the upper surface of the conical guide plate 4 into the guide pipe 8, and the large particle impurities fall into the impurity collecting chamber 7 under the action of gravity.

[0033] Example 2

[0034] A high specific surface sample detection device, comprising a screening mechanism for screening impurities in the sample and a plurality of detection boxes 5 for detecting the particle size of the sample, the detection box 5 is a circular cylindrical structure, the number of detection boxes 5 is the same as the number of discharge ports, and the screening mechanism is the screening mechanism described in the embodiment. The discharge port and the detection box 5 are connected through the inclined shunt pipe 6, the number of shunt pipes 6 is the same as the number of discharge ports, the top end of the shunt pipe 6 is connected with the discharge port, and the bottom end of the shunt pipe 6 is connected with the detection box 5.

[0035] A plurality of particle sieving plates 502 are arranged in the detection box 5 along the height direction thereof, in the embodiment, the number of particle sieving plates 502 is 3, and the hole diameter of the particle sieving plate 502 gradually decreases along the height direction of the detection box 5, that is, the hole diameter of the uppermost particle sieving plate 502 is the largest, and the hole diameter of the lowermost particle sieving plate 502 is the smallest. The powder with a particle size greater than the hole diameter of the particle sieving plate 502 is left on the upper surface of the particle sieving plate 502, and the powder with a particle size smaller than the hole diameter of the particle sieving plate 502 falls to the next layer of particle sieving plate 502.

[0036] The upper surface of the particle sieving plate 502 is provided with an elastic scraper 503 connected with the detection box 5, as shown in Figure 1 The detection box 5 is provided with a transmission shaft 501, the elastic scraper 503 is fixedly connected with the transmission shaft 501, the bottom end of the transmission shaft 501 extends out of the detection box 5 and is coaxially fixedly connected with a driven gear 902, and the driving shaft of the driving motor 9 is coaxially fixedly connected with a driving gear 901 engaged with the driven gear 902, that is, the driving motor 9 drives the transmission shaft 501 to rotate, and in turn drives the elastic scraper 503 to rotate, thereby improving the detection efficiency.

[0037] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sieve for high specific surface sample detection, comprising a sieve cylinder (1) with a feed inlet at the top end, a sieve plate and a conical guide plate (4) being arranged in the sieve cylinder (1) and distributed along the height direction thereof, the upper surface of the sieve plate being rotatably provided with a plurality of first scraping rods (202), and the upper surface of the conical guide plate (4) being rotatably provided with a plurality of second scraping rods (401), characterized in that: The screen plate comprises an upper layer plate (2) provided with first screen holes (201) and a lower layer plate (3) provided with second screen holes (301), the upper layer plate (2) is fixedly connected with the screen cylinder (1), the lower layer plate (3) is rotatably connected with the upper layer plate (2), and the lower layer plate (3) can be deflected relative to the upper layer plate (2), so that the first screen holes (201) and the second screen holes (301) form a first channel for impurities to fall, and the first screen holes (201) and the second screen holes (301) are deflected to form a second channel for samples to fall; the screen cylinder (1) is provided with a plurality of discharge ports communicated with the detection box (5) and a plurality of discharge ports communicated with the detection box (5) at the lower part, and a plurality of sealing plates (801) for sealing the discharge ports and the discharge ports are slidably arranged on the side wall of the screen cylinder (1).

2. A screening mechanism for high specific surface sample detection as claimed in claim 1, characterized in that: The lowest position of the discharge port is below the bottom end of the conical guide plate (4), and the highest position of the discharge port is above the conical guide plate (4).

3. A screening mechanism for high specific surface sample detection as claimed in claim 1, wherein: The discharge port and the collection chamber (7) are communicated through the inclined guide pipe (8), the top end of the guide pipe (8) is communicated with the discharge port, and the bottom end of the guide pipe (8) is communicated with the collection chamber (7).

4. The screening mechanism for high specific surface sample detection according to claim 1, characterized in that: The side wall of the screen cylinder (1) is provided with a long hole, and the lower layer plate (3) is fixedly connected with a radial extending lever (302) at the edge.

5. A screening mechanism for high specific surface sample detection as claimed in claim 1, wherein: The screen cylinder (1) is rotatably provided with a rotating shaft (102) coaxial with the screen cylinder (1), and one end of the first and second scraping rods (202) and (401) is fixedly connected with the side wall of the rotating shaft (102).

6. A screening mechanism for high specific surface sample detection as claimed in claim 5, characterized in that: The bottom end of the rotating shaft (102) extends out of the screen cylinder (1) and is connected with a driving motor (9) for driving the rotation thereof.

7. A high specific surface sample screening mechanism as claimed in claim 1, characterized in that: The top of the feeding port is provided with a feeding hopper (101) fixedly connected with the screen cylinder (1).

8. A high specific surface sample testing device comprising a screening mechanism for screening out impurities in the sample and a plurality of detection boxes (5) for detecting the particle size of the sample, characterized in that: The screening mechanism is the screening mechanism according to any one of claims 1-7.

9. A high specific surface sample detection apparatus as claimed in claim 8, characterized in that: The detection box (5) is provided with a plurality of particle screening plates (502) distributed along the height direction thereof, and the upper surface of the particle screening plate (502) is provided with an elastic scraper (503) rotatably connected with the detection box (5).

10. A high specific surface sample detection apparatus as claimed in claim 8, characterized in that: The discharge port and the detection box (5) are communicated through the inclined shunt pipe (6), the top end of the shunt pipe (6) is communicated with the discharge port, and the bottom end of the shunt pipe (6) is communicated with the detection box (5).

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