JPH04117006U - asphalt plant - Google Patents

Abstract

(57) [Summary] [Structure] An asphalt plant each having two vibrating screens 6, 7, hot bins 8, 9, and discharge gates 11, 12, two mixers 17a, 17b, a stone powder measuring tank 16a, 16b and aggregate measuring tanks 15a, 15b
Equipped with. [Effect] The hot bin is divided into at least two parts, each used for coarse material supply and dense material supply, and two aggregate measuring tanks, two stone powder measuring tanks, and a mixer are installed at the bottom of each hot bin. Therefore, asphalt mixture of the desired composition can be immediately supplied without being affected by the density of the supplied material.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to produce a wide variety of asphalt mixtures used for asphalt-paved roads. Asphal that can be manufactured in a short time with a very stable formulation and no time loss. Regarding toplant.

0002

[Conventional technology]

Conventionally, the structure of this type of asphalt plant was as shown in Figs. 2 and 3. Construction was common.

0003 In the same figure, heated aggregate is introduced and sieved at the bottom of the vibrating sieve 40. A bin 41 is provided. This hot bin 41 is heated by the sieve mesh of the vibrating sieve 40. The bins are divided into four or five bins. On both sides of hot bin 41, A stone powder storage hopper 46 and a dust storage hopper 47 are arranged, and The stone powder measuring screw 48 and the dust measuring screw 49 are provided. A stone powder measuring tank 50 is installed at the bottom of the stone powder measuring screw 48. The stone powder that has been removed and transported by the stone powder measuring screw 48 is transferred to the dust measuring screw 48. The stone powder is accumulated and weighed in the stone powder measuring tank 50 together with the dust carried by the stone powder 49. Also, feel relieved. The lower part of the bin 41 is a discharge port 52, and below this discharge port 52 is used for measuring aggregate. A tank 53 is provided. Below these stone powder measuring tank 50 and aggregate measuring tank 53, A mixer 54 is provided in the section. Note that there is an aperture at the bottom of the asphalt measuring tank 51. Asphalt spray pump 55 is installed, and asphalt spray pump Downstream of 55, a mixer 54 is sprayed by piping.

0004 56 is a mixer drive motor that rotates the blades 57 inside the mixer 54 and Mix asphalt, aggregate, stone powder, etc. to produce asphalt mixture.

[0005]

[Problem that the idea aims to solve] However, in the conventional asphalt plants mentioned above, The amount of aggregate to be sieved in the vibrating sieve differs between when coarse material is fed and when dense material is fed. Aggregates with different particle sizes are stored in layers in hot bins because of their different drainage efficiencies. It will be. Therefore, in hot bins when feeding coarse material, dense asphalt The disadvantage of composite wood is that it is difficult to produce.

[0006] In addition, even if the mixing ratio is the same during coarse material feeding and dense material feeding, the mixer Since there is only one unit installed, there is a large amount of waste stored in hot bins when producing various types of composite materials. The drawback was that there was a lot of time lost in the work of replacing the aggregate that had been removed.

[0007] This is due to the topography of the Japanese archipelago, which is long from north to south, and especially due to the difference in temperature. With the rapid diversification of composite materials used for phalt-paved roads, problems have arisen. It was something that was becoming more and more common.

[0008] Therefore, the present invention has been developed to ensure that both coarse and dense materials are You can always obtain asphalt mixture with the desired composition stably and in a short time. The purpose is to make it possible to

[0009]

[Means to solve the problem]

The asphalt plant of this invention has two vibrating sieves, two hot bins, and two exhaust bins. Each asphalt plant has two mixers and a stone powder metering gate. It is characterized by comprising a tank and an aggregate measuring tank.

0010

[Effect]

In this invention, aggregates in an asphalt plant are divided into coarse and fine supply. Once the asphalt mixture is sent to the hot bin and the desired mix is weighed, In both cases, the desired mix can be achieved without replacing the aggregate stored in the hot bin. You can get something.

[0011]

【Example】

Hereinafter, the present invention will be explained in detail with reference to the drawings.

0012 An embodiment of the present invention is shown in FIG. In the same figure, hot elevator 1 is split into two parts. It is connected to branched chutes 2 and 3, and a switching damper 4 is provided at the branch point. Ru. This switching damper 4 rotates around a shaft 5, and controls the chutes 2 and 3, respectively. It can be opened and closed. Vibrating screens 6 and 7 are connected to chutes 2 and 3, respectively. Furthermore, hot bins 8 and 9 are connected to the vibrating screens 6 and 7 by partition walls 10, respectively. connected in a divided manner. Hot bin 8 is for supplying coarse materials; The hot bin 9 is for dense material supply.

[0013] The hot bins 8 and 9 are provided with discharge gates 11 and 12 at their lower portions, respectively. ing. The discharge gates 11 and 12 are opened and closed at the respective measuring tank positions. ing. In the figure, 13 and 14 are measuring series for opening and closing the discharge gates 11 and 12. It is Nda.

[0014] Here, two aggregate measuring tanks 15 are provided below the discharge gates 11 and 12, respectively. a, 15b, stone powder measuring tanks 16a, 16b, and mixers 17a, 17b are arranged. There is. The coarse material discharged from the discharge gate 11 is sent to the aggregate measuring tank 15a, The stone powder supplied from the stone powder measuring tank 16a is mixed in the mixer 17a according to the mixing ratio a. As a result, asphalt mixture of purpose A can be obtained.

[0015] On the other hand, the dense material discharged from the discharge gate 12 is sent to the aggregate measuring tank 15b. , the stone powder supplied from the stone powder measuring tank 16b and the mixing ratio of b are mixed in the mixer 17b. Asphalt mixture of Purpose B can be obtained.

[0016] In this way, in this embodiment, two aggregate measuring tanks 15a, 15b, etc. are provided. Therefore, when manufacturing asphalt mixtures with different blending ratios, stone powder must be measured each time. Immediately supplies A and B asphalt without the need to replace tanks, etc. be able to.

[0017]

[Effect of the idea]

As explained above, in this invention, the hot bin is divided into at least two parts. They are used for coarse material feeding and dense material feeding, respectively, and each hot beer Two aggregate measuring tanks, two stone powder measuring tanks, and a mixer were installed at the bottom of the container. Immediately prepares asphalt mixture with the desired composition without being affected by the density of the supplied material. can be supplied to

[Brief explanation of drawings]

FIG. 1 is a side view of an asphalt plant showing an embodiment of the present invention.

FIG. 2 is a front view of an asphalt plant in a conventional example.

FIG. 3 is a side view of an asphalt plant in a conventional example.

[Explanation of symbols] 1 Hot elevator 2,3 Shoot 4 Switching damper 5 axis 6,7 Vibrating sieve 8,9 Hot bottle 10 Bulkhead 11,12 Discharge gate 13,14 Measuring cylinder 15a, 15b Aggregate measuring tank 16a. 16b Stone powder measuring tank 17a, 17b mixer

Claims (1)

[Scope of utility model registration request] 1. An asphalt plant comprising two vibrating screens, a hot bin, and a discharge gate, each of which is equipped with two mixers, a stone powder measuring tank, and an aggregate measuring tank.