JPH0628703U - Automatic powder halving device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an automatic powder halving device capable of reliably preventing blockage of powder. [Structure] The vibrating powder feeder 16 and the dichotomer 32 are integrally connected to each other to form a vibrating powder dicer. A large number of partition plates 18 are arranged in the vertical direction in the powder conveying direction in the dichotomer 32, and slot holes 20 and 22 through which the powder falls are formed on the upstream side and the downstream side. Shoots 28, 30 through the flexible joints 24, 26 into the slots
Are connected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an automatic sampling system for precisely controlling the product quality of powders and giving instructions for adjusting product quality through quality checks during the manufacturing process. If the analyzer is normal, it is supplied to both sides, and if either is abnormal, it is supplied to only the normal side.

[0002]

[Prior art]

 Conventionally, when the same powder (for example, coal ash) automatically sampled from an air flow pipe is analyzed by multiple analyzers (for example, ignition loss measurement device, particle size distribution measurement device, etc.), edge cutting is performed once. Then, the powder sample is manually divided using a dichotomer and supplied to the analyzer. The above dichotomer is constructed by arranging a large number of partition plates in the longitudinal direction at the same intervals to form a large number of grooves, and alternately allocating these grooves to the left and right chutes. The sampling method used is known as JIS M 8811. The manual division work in the above-mentioned conventional method takes time, cannot efficiently divide a large number of powders, and the same work is required even if one of the analyzers is out of order. However, it is not possible to perform a large number of analyses, and it is not possible to improve the measurement accuracy.

In order to solve the above-mentioned problems, the present applicant has proposed that a vibrating powder feeder having a powder inlet at one upper end and a powder outlet at the other lower end and a powder outlet connected to the vibrating powder feeder. , A large number of partition plates are arranged in the longitudinal direction at the same interval to form a large number of grooves, and a divisor configured to alternately distribute these grooves to the left and right chutes, and the dices connected to these chutes, respectively. We have developed an automatic powder halving device equipped with an analyzer or an automatic distributor for feeding powder to a waste tank, and have already filed a utility model registration application (see Japanese Utility Model Publication No. 4-3 4648). ).

[0004]

[Problems to be solved by the device]

 However, in the powder automatic two-divided device described in Japanese Utility Model Laid-Open No. 4-34648, since the dicing device is not integrated with the vibrating powder feeding device, the powder adheres to the dicing device in many cases, Occasionally, the inside of the bisection was blocked. In addition, there were cases where the powder transfer chute interconnecting the dichotomer, automatic dispenser, analyzer and waste tank, the interior of the automatic dispenser, etc. were blocked. The present invention has been made in view of the above points, and can accurately and automatically divide a powder into two parts in a short time. Further, the powder automatic sampling device and the analysis device can be easily integrated. It is an object of the present invention to provide an automatic powder halving device that can be achieved, is suitable for continuous unattended powder quality control, and can prevent clogging of each part.

[0005]

[Means and Actions for Solving the Problems]

 In order to achieve the above object, the powder automatic two-division device of the present invention is provided with a powder inlet 10 at one upper end and a powder outlet 12 at the other lower end, as shown in FIGS. A vibrating powder supply unit 16 to which a vibrator 14 is connected, and a large number of partition plates 18 at the powder outlet 12 are arranged in the powder conveying direction and in the vertical direction, and the powder is provided on the upstream side and the downstream side. Grooved holes 20 and 22 through which the body falls are formed, and chutes 28 and 30 are connected to these grooved holes 20 and 22 through flexible joints 24 and 26, and are integrally connected to a vibrating powder supply unit 16. The oscillating powder sieving device 32 is provided. When the coal ash is divided into two, the partition plates 18 are provided at the same intervals of 4 to 30 mm. If the spacing between the partition plates 18 is less than 4 mm, the powder is likely to be clogged, and if it exceeds 30 mm, the accuracy of splitting is reduced and the size of the divisor becomes large. For this reason, 4 to 30 mm is preferable.

Further, in the above-mentioned powder automatic two-division device, the powders are connected to the chutes 28 and 30 of the vibrating powder dichotomizer 32, respectively, and the powders are transferred to the analyzers 34 and 36 or the waste tanks 38 and 40 and conveyed. Between the automatic powder dispenser 42 and 44, the vibrating powder divisor 32 and the automatic distributors 42 and 44, the automatic distributor and analyzers 34 and 36, and the automatic distributor and the waste tanks 38 and 40. A vibrator V provided on at least one of the powder conveying chutes S is provided. In this case, it is preferable to provide a vibrator on all the powder transfer chutes in order to reliably prevent clogging.

Further, the analysis device and the automatic distributors 42, 44 are connected via the failure signal control devices 46, 48 so as to be activated by the failure signals of the analysis devices 34, 36. If the analyzer fails, the line of the automatic distributor is switched by the failure signal and the powder is supplied only to the normal one, which helps prevent the blank time in the quality control of the powder and improves the measurement accuracy. It greatly contributes to improvement and labor saving.

In the powder automatic two-division device of the present invention, the efficiency of the automatic sampling system is improved, and at the same time, in order to improve the measurement accuracy and prevent clogging, the automatically sampled powder is automatically If the two analyzers 34 and 36 are normal, supply them to both, and if either one is abnormal, switch the automatic distributors 42 and 44 to supply only to normal ones.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. However, unless otherwise specified, the shapes of the components and the relative arrangements of the components described in this embodiment are not intended to limit the scope of the present invention to them only, and are simple. It's just an example. FIG. 1 shows an embodiment of the automatic powder halving device of the present invention, in which a vibrating powder divisor 32 is integrally connected to a vibrating powder supply unit 16 having a hermetic structure, and the analysis is performed under the vibrator. It is equipped with automatic distributors 42 and 44 which are activated by the failure signals of the devices 34 and 36. Since the vibrator 14 is connected to the powder supply unit 16, the powder supply unit 16 and the divisor 32 integrally connected to the powder supply unit 16 vibrate. 50 is a lid.

As shown in FIGS. 2 and 3, a large number of partition plates 18 are arranged in the powder inlet 12 in the vertical direction in the powder conveying direction at the same intervals with a width of 4 to 30 mm. Grooves 20 and 22 through which the powder falls are formed alternately on the front side and the downstream side. Then, the powder is conveyed by the vibrating powder supply unit 16 and dropped into the front slot 20 into the chute 28, and the powder dropped into the rear slot 22 into the chute 30, respectively. It is configured to be distributed via the flexible joints 24 and 26. Powder from an automatic powder sampling device (not shown) or the like is introduced from the powder inlet 10 into the vibrating powder supply unit 16 and from the powder outlet 12 to the divisor 32 shown in FIGS. 2 and 3. Is supplied to. The powder charged into the dichotomer 32 passes through the slots 20 and 22 between the partition plates 18 and is alternately distributed to the short 28 and the chute 30.

The bisector shown in FIG. 3 is a device for dividing powder into equal parts, that is, a ½ divider. Instead of the ½ divider, one groove hole on the front side between the partition plates 18 may be skipped by one, and two slit holes may be provided, so that a ⅓ to 1/16 divider can be obtained. As an example, FIG. 4 shows a 1/3 divider and FIG. 5 shows a 1/4 divider.

The powders from the chutes 28, 30 are supplied to the automatic distributors 42, 44, and if the subsequent analyzers 34, 36 are normal, they are distributed and supplied to these analyzers 34, 36. If any of the analyzers is abnormal, the failure signal of this analyzer activates the automatic distributor through the failure signal control device 46 or 48 to distribute / put the powder into the discard tank 38 or 40. . Vibrators V1 and V2 are connected to the powder conveying chutes (pipes) S1 and S2 that connect the dichotomer 32 and the automatic distributors 42 and 44, and connect the automatic distributors 42 and 44 to the analyzers 34 and 36. Vibrators V3 and V4 are connected to the powder transfer chutes (pipes) S3 and S4 to be connected, and the powder transfer chutes (pipes) S5 to connect the automatic distributors 42 and 44 to the waste tanks 38 and 40 are connected. Vibrators V5 and V6 are connected to S6. By operating these vibrators V1 to V6, it is possible to reliably prevent the powder transfer shoes S1 to S5 from being blocked and the devices from being blocked. The vibrations of the vibrator 14 and V1 to V5 are prevented from being conducted downward or upward by the flexible joints 24 and 26 of the dichotomer 32, thereby preventing an unreasonable force from being applied to the dichotomer 32.

[0013]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. (1) The dicing device is integrally connected to the vibrating powder supply unit to form a vibrating powder dicing device, so it is possible to reliably prevent the powder from adhering to the dicing device and blocking the powder. it can. (2) When the vibrator is connected to the powder conveying chute, it is possible to reliably prevent the powder in the chute and each device from being blocked. (3) In the dichotomer, since the slot and the chute are connected via a flexible joint, unreasonable stress such as vibration is absorbed. (4) The powder automatic two-division device of the present invention can accurately and automatically divide the powder into two parts in a short time. Moreover, the powder automatic sampling device and two analyzers are integrated. Since it can be easily achieved and the blockage is surely prevented, it can be used for continuous unmanned day and night for powder quality control. (5) In the apparatus of claim 4, in addition to the effects of (1) to (4) above, the powder is automatically divided into two, and if two analyzers are normal, they are supplied to both. However, if either of them is abnormal, it can be supplied only to the normal one, which is highly effective in improving measurement accuracy and saving labor.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an embodiment of an automatic powder dividing device according to the present invention.

FIG. 2 is a front enlarged explanatory view showing an example of the dichotomer in FIG.

FIG. 3 is an explanatory plan view of the dichotomer in FIG. However, the state is shown with the lid removed.

FIG. 4 is a plan view showing another example of the dichotomer in the device of the present invention.

FIG. 5 is a plan view showing still another example of the dichotomer in the device of the present invention.

[Explanation of symbols]

 10 Powder Inlet 12 Powder Outlet 14 Vibrator 16 Vibratory Powder Feeding Part 18 Partition Plate 20 Groove Hole 22 Groove Hole 24 Flexible Joint 26 Flexible Joint 28 Chute 30 Chute 32 Vibratory Powder Divider 34 Analyzing Device 36 Analyzing Device 38 Waste tank 40 Waste tank 42 Automatic distributor 44 Automatic distributor 46 Failure signal controller 48 Failure signal controller S Powder transfer chute V Vibrator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hirotoshi Yamada Creator Hirotoshi Yamada 1 20-20 Kitakanyama, Otaka-cho, Midori-ku, Nagoya, Aichi Chubu Electric Power Co., Inc. Electric Power Research Laboratory (72) Creator Hayami Ito Kawasaki, Akashi, Hyogo Prefecture 1-1, Kawasaki Heavy Industries, Ltd., Akashi Factory (72) Inventor, Yasunori Shibata 1-1, Kawasaki-cho, Akashi, Akashi, Hyogo Prefecture Kawasaki Heavy Industries, Ltd., Akashi Factory (72) Takahiro Yasuda 2-chome, Minamisuna, Koto-ku, Tokyo No. 4-25 Kawasaki Heavy Industries Ltd. Tokyo Design Office

Claims (4)

[Scope of utility model registration request] 1. A vibrating powder supply section (16) having a powder inlet (10) at one upper end and a powder outlet (12) at the other lower end, and a vibrator (14) connected thereto, and a powder outlet. A large number of partition plates (18) are arranged in (12) in the powder conveying direction and in the vertical direction to form slot holes (20) and (22) through which the powder falls on the upstream side and the downstream side. And through the flexible joints (24) and (26) into the slots (20) and (22), the chutes (28) and (3) are formed.
0) is connected to the vibrating powder feeder (16) and is integrally connected to the vibrating powder dichotomer (32). 2. The automatic powder halving device according to claim 1, wherein the partition plates (18) are provided at the same intervals of 4 to 30 mm. 3. An analyzer (3) connected to the chutes (28) and (30) of a vibrating powder dichotomer (32), respectively.
4), (36) or an automatic distributor (42) for switching and transporting the powder to the waste tanks (38), (40),
(44), the vibration type powder dichotomer (32) and the automatic distributor (42), (4
4), provided on at least one of the automatic distributor and the analyzers (34) and (36), and the powder transfer chute (S) between the automatic distributor and the waste tanks (38) and (40). 3. A powder automatic two-division device according to claim 1 or 2, further comprising a vibrator (V). 4. An analyzer and an automatic dispenser (4) to be activated by a failure signal of the analyzer (34), (36).
2), (44) and the failure signal control device (46), (4)
The automatic powder splitting device according to claim 3, wherein the automatic powder splitting device is connected via 8).