WO2018064859A1

WO2018064859A1 - Integrated high-efficiency silt and residual soil processing apparatus

Info

Publication number: WO2018064859A1
Application number: PCT/CN2016/107452
Authority: WO
Inventors: 陈宏伟; 黄克伟; 杨传锐
Original assignee: 深圳申佳原环保科技有限公司
Priority date: 2016-09-26
Filing date: 2016-11-28
Publication date: 2018-04-12
Also published as: CN106238180A

Abstract

An integrated high-efficiency silt and residual soil processing apparatus (1), which has a cylindrical shape and is suitable for processing silt excavated during urban construction. The apparatus at least comprises a grinding part (11) and a silt separating part (12), wherein a grinding member (111) on the cylindrical inner wall of the grinding part (11) preliminarily crushes processed silt which enters the grinding part (11) and conveys the processed silt to the silt separating part (12); a high-pressure dilution water nozzle (121) is arranged on an outer side of the silt separating part (12) for diluting the silt entering the silt separating part (12) into thin silt; the silt separating part (12) allows a thin silt mixture having a particle size smaller than a predetermined large material particle size to pass through; while a mixture of large materials having a particle size larger than or equal to the predetermined large material particle size is discharged from a discharge opening (122). As a result of using the cylinder-shaped silt-separating device for processing silt into a mixture of thin silt and bulky materials, waste silt and soil conveyed from construction sites can be directly poured into the separating device, and quickly processed into a mixture of thin silt and bulky materials, without piling up and causing accumulation.

Description

Integrated high-efficiency silt dregs treatment device

Technical field

The invention relates to a treatment device for treating sludge and dregs generated during urban construction, in particular, mud which is excavated in urban construction, such as integrated high-efficiency sludge of muck generated by subway construction, house construction and foundation excavation. Slag treatment unit.

technical background

Metro construction and high-rise building construction are signs of a city's rapid development. In the construction of subways and high-rise buildings, a large amount of excavated soil will inevitably be produced. There is only one way to deal with this type of soil. It is to build a number of soil receiving sites in the surrounding areas of the city. The soil generated during the urban construction process is directly sent to the receiving fields through the soil truck. This treatment method essentially transfers the soil excavated from the place to be constructed to a place where urban construction is not needed. However, it is suitable for use as a receiving place in the surrounding areas of the city, and it is less and less. It is only necessary to overload the existing receiving field and form an artificial mountain. This artificial mountain is relatively loose. Affected by geographical changes and weather factors, such as earthquakes or heavy rains, it is easy to cause artificial landslides, causing immeasurable human losses. For example, this summer, a person in the southern city of this receiving field was a landslide, and almost all the industrial areas around the mountain were buried, causing huge casualties and property losses.

Chinese Patent Publication No. CN202087272U discloses a rotary drum mixer comprising a conveying device, which has a sludge inlet at one end and a sludge outlet at the other end, the conveying device has a conveying passage, and at least one shaftless spiral blade is arranged in the conveying passage. The shaftless spiral blade extends from the sludge inlet to the sludge outlet, and the end of the shaftless spiral blade near the sludge inlet is connected with a power source; the stirring drum has a stirring chamber, and one end of the stirring drum is provided with a feeding port, and the other end is provided The utility model is provided with a discharge port, the inlet port is connected with the sludge outlet, and the outer ring wall of the stirring drum is sleeved with a large transmission gear, and the inner side wall of the stirring chamber is fixedly connected with a plurality of lifting plates in the circumferential direction; It is connected to a large transmission gear. The rotary drum mixer can fully mix the mixture of the sludge and the curing agent to make the solidification of the sludge more uniform and uniform, and the sludge can be continuously and continuously fed, and the sludge after stirring and solidification is discharged to realize the sludge. Processed water production. The rotary drum mixer has a small processing capacity and is only suitable for removing sludge from the construction site, and is not suitable for the soil excavated in urban construction, such as the treatment of muck generated by subway construction, house construction and foundation.

Therefore, how to quickly industrialize the soil generated by urban construction and turn it into a treasure is an urgent problem to be solved.

Summary of the invention

In order to solve the deficiencies of the prior art, the present invention provides an integrated high-efficiency sludge sludge treatment device capable of rapidly and industrially processing the soil generated in the urban construction process into a construction material and industrial soil. .

The technical proposal of the present invention is to provide an integrated high-efficiency sludge sludge treatment device, which is in the shape of a drum, and is mainly suitable for treating muddy soil excavated in urban construction, and at least includes an abrasive portion and a sand-sand separation portion; The abrasive member on the inner wall of the drum of the abrasive portion is initially crushed by the treated mud sand entering the abrasive portion, and sent to the separated portion of the mud sand, and a high-pressure dilution water nozzle is disposed outside the separated portion of the mud sand, and the separated portion of the material is entered. The mud sand is diluted into a thin mud sand, and the mud sand separation portion allows a mixture of the fine sand mixture having a particle diameter smaller than a predetermined particle diameter of the large material to pass; and the large material mixture having a particle diameter equal to or larger than the predetermined particle diameter of the large material is discharged from the discharge port.

As a modification of the present invention, the abrasive member is a herringbone structure composed of a rebar, and the head of the herringbone is preferably oriented in the direction of the feed opening.

As a modification of the present invention, the rebar is made of a high carbon iron alloy, which is 13% to 16% by weight of titanium, 4-6% carbon, 2-3% silicon, 1-3% lead, and 5-carbon tungsten carbide. 8%, boron 2-5%, chromium 2-5%, the balance is iron composition.

As a modification of the present invention, the drum type mud sand separating device has a diameter selected between 1 m and 5 m and a length selected between 5 and 20 m.

As a modification of the present invention, the aggregate has a predetermined particle size selected between 20 mm and 50 mm.

As an improvement to the present invention, a feed section is further included to extend the time for the soil to be treated to enter the abrasive portion; a first curved guide plate is disposed on the inner wall of the drum of the feed section, and a plurality of mutually parallel axial arrangements are provided. The first curved guide plate constitutes a plurality of first curved guide grooves, and the mud to be treated is fed into the abrasive portion along the first curved guide groove.

As a modification of the present invention, a second curved guide plate is disposed on the inner wall of the drum of the abrasive portion, and a plurality of second curved guide plates disposed parallel to each other constitute a plurality of second curved guide grooves. A plurality of abrasive members are arranged in the second curved guide groove and a circumferential baffle for lifting the radial arrangement of the mud to be treated as the drum rotates, and the mud sand to be treated is subjected to the abrasive member on the one hand in the abrasive portion. Constantly crushed, and at the same time under the action of the circumferential baffle, it is continuously dropped after lifting the drum to achieve further crushing; the crushed mud sand goes along the second curved guide groove and enters the separated part of the mud and sand.

The invention adopts a drum type mud sand separating device to treat the treated mud sand into a mixture of muddy sand and an aggregate, so that the waste soil pulled from the soil truck of the construction site can be directly poured into the separation device and quickly processed into a thin mud sand and The mixture of large materials will not cause accumulation; in addition, the soil to be treated can be made into ceramics or porcelain products according to the different soil composition, and all wastes are fully utilized, realizing waste turning into treasure, is a A green sustainable project. By adopting the system of the invention, more than 98% of the useful materials in the washing mud can be recycled and reused, and more than 90% of the waste water can be reused after being purified.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the structure of an integrated drum type mud sand separating apparatus of the present invention.

Figure 2 is a cross-sectional view showing the structure taken along line A-A of Figure 1.

detailed description

Referring to FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 disclose an integrated drum type mud sand separating device 1. When installed, the drum type mud sand separating device 1 is installed obliquely, and the inlet port 132 is higher than the row. The material port 122, in order to facilitate the processing of the muddy sand under the action of gravity, a circular gear 14 is arranged on the circumference of the outer wall of the drum, and circular guides 15 are arranged on both sides of the gear 14, and the motor 16 drives the driving gear 161 through the gear 14 drives the drum type mud sand separating device 1 to rotate, and a circular guide rail 15 is disposed on the drums on both sides of the gear wheel 14, and the circular rail 15 cooperates with the guide wheels 17 distributed on both sides of the drum to play The drum type mud sand separating device 1 includes at least an abrasive portion 11 and a mud sand separating portion 12; the abrasive member 111 on the inner wall of the drum of the abrasive portion 11 will enter the treated mud sand in the abrasive portion 11. It is initially crushed and sent to the mud-sand separation portion 12, and a high-pressure dilution water nozzle 121 is disposed outside the mud-sand separation portion 12, and the mud sand entering the material separation portion 12 is diluted into a thin mud sand, and the mud-sand separation portion allows the particles. Smaller diameter The large-sized sand mixture of the predetermined particle size of the large material passes through the circular hole 123; and the large-size mixture having a particle diameter of not less than or equal to the predetermined particle diameter of the large material is discharged from the discharge port 122; in this embodiment, the predetermined particle size of the large material is Between 20 mm and 50 mm, in particular, a plurality of circular holes 123 having a diameter of 20 mm to 50 mm may be disposed on the drum of the separated portion of the mud and sand, and the mud sand after the preliminary crushing is less than or equal to 20 Between mm and 50 mm, it can leak from the hole 123; and large materials with a diameter of more than 20 mm to 50 mm, including metal, bamboo, plastic, and large particles of stone and mud, are all from the row. The material port 122 is discharged, and the large material discharged from the discharge port 122 is processed by an aggregate processing step to be described later.

When the diameter of the drum type mud sand separation device is more than 3 meters, the earth vehicle of 10-20 tons can directly pour the soil to be treated into the drum type mud sand separation device. In this case, it is preferable to use the drum type mud sand separation device. A conveying section 13 is provided at the foremost stage to extend the time for the soil to be treated to enter the abrasive portion 11, and the soil to be treated is initially diluted by adding appropriate moisture to the conveying section 13; on the inner wall of the drum of the conveying section 13 A first curved guide plate 1311 is disposed, and a plurality of axially disposed first curved guide plates 1311 are formed to form a plurality of first curved guide grooves 131, and the mud sand to be treated is along the first curved guide groove 131. It is fed into the abrasive portion 11.

A second curved guide plate 112 is disposed on the inner wall of the drum of the abrasive portion 11, and a plurality of second curved guide plates 112 disposed axially parallel to each other constitute a plurality of second curved guide grooves 113. The second curved guide groove 113 is provided with a plurality of abrasive members 111 and a circumferential baffle 114 for lifting the radial arrangement of the mud to be treated as the drum rotates. The mud sand to be treated is carried out on the one hand in the abrasive portion 11 The abrasive member 111 is continuously crushed, and is also under the action of the circumferential baffle 114, and is continuously dropped after the drum is lifted to further crush; the crushed mud sand advances along the second curved guide groove 113, and enters The mud sand separation portion 12.

Preferably, the abrasive member 111 is a herringbone structure composed of a rebar, and preferably the portion of the herringbone faces the feed opening 132. In order to improve the wear resistance of the abrasive member 111, the abrasive member 111 may be made of a high carbon iron alloy having a weight percentage of titanium of 13% to 16%, carbon of 4-6%, silicon of 2-3%, and lead 1- 3%, tungsten carbide 5-8%, copper 0.1-0.3%, boron 2-5%, chromium 2-5%, the balance is iron.

Example 1

The abrasive member 111 can be made of the following high carbon iron alloy, which is composed of titanium 13% by weight, carbon 4%, silicon 2%, lead 1%, tungsten carbide 5%, copper 0.1%, boron 2%, and chromium 2%. The balance is iron.

Example 2

The abrasive member 111 can be made of the following high carbon iron alloy, which is composed of titanium by weight of 14%, carbon 5%, silicon 3%, lead 2%, tungsten carbide 6%, copper 0.2%, boron 4%, and chromium 4%. The balance is iron.

Example 3

The abrasive member 111 can be made of the following high carbon iron alloy, which is composed of titanium 16% by weight, 6% carbon, 3% silicon, 3% lead, 8% tungsten carbide, 0.3% copper, 5% boron, and 5% chromium. The balance is iron.

The difference between the above alloys is that copper is generally considered to be a harmful element for iron alloys and cannot be used. However, when the copper element is added to the iron-titanium alloy together with tungsten carbide, the iron-titanium alloy is greatly improved. Wear resistance.

The test method and result of the abrasion resistance of the abrasive article of the invention and the commercially available iron-titanium joint:

Test method, using device, ML-10 abrasive wear tester, 200# corundum sandpaper, one ten thousand precision balance. The sample speed was 180 rpm, the normal load force was 750 N, and the time was 4 hours.

test results:

result

Sample Wear Amount (mg) Control Sample 6.2 Example 1 3.6 Example 2 3.7 Example 3 3.5 As can be seen from the above table, the abrasive article of the present invention has the advantage of good wear resistance compared to commercially available iron-titanium.

Preferably, the drum type mud sand separating device has a diameter selected between 1 m and 5 m and a length selected between 5 m and 20 m.

Claims

1. The utility model relates to an integrated high-efficiency sludge sludge treatment device (1), which is in the shape of a drum, and is mainly suitable for treating muddy soil excavated in urban construction, and is characterized in that it comprises at least an abrasive portion (11) and a separated part of mud and sand (12) The abrasive member (111) on the inner wall of the drum of the abrasive portion (11) initially crushes the treated mud sand entering the abrasive portion (11) and feeds it into the mud sand separation portion (12) in the mud sand separation portion. The outer side of (12) is provided with a high-pressure dilution water nozzle (121), and the mud sand entering the material separation portion (12) is diluted into a thin mud sand, and the mud sand separation portion allows the muddy sand having a particle diameter smaller than a predetermined particle diameter of the large material. The mixture passes; and the bulk mixture having a particle size greater than or equal to the predetermined particle size of the large material is discharged from the discharge port (122).

2. The integrated high-efficiency sludge sludge treatment apparatus according to claim 1, wherein: The abrasive member (111) is a herringbone structure composed of rebar, and the head of the herringbone is preferably oriented in the direction of the inlet.

3. The integrated high-efficiency sludge sludge treatment apparatus according to claim 2, wherein the rebar is made of a high carbon iron alloy, which is composed of titanium in a weight percentage of 13% to 16%, carbon 4-6%, and silicon. 2-3%, lead 1-3%, tungsten carbide 5-8%, copper 0.1-0.3%, boron 2-5%, chromium 2-5%, the balance is iron composition.

4. The integrated high-efficiency sludge sludge treatment device according to claim 1, 2 or 3, wherein the drum type mud sand separation device has a diameter of between 1 and 5 meters and a length of 5 to 20 meters. Choose between.

5. The integrated high-efficiency sludge sludge treatment apparatus according to claim 1, 2 or 3, wherein the large-sized predetermined particle diameter is selected between 20 mm and 50 mm.

6. The integrated high-efficiency sludge sludge treatment apparatus according to claim 1, 2 or 3, characterized by further comprising a conveying section (13) for extending the time during which the soil to be treated enters the abrasive portion (11); A first curved guide plate (1311) is disposed on the inner wall of the drum of the conveying section (13), and a plurality of first curved guide plates (1311) disposed axially parallel to each other constitute a plurality of first curved guide grooves (131), the mud sand to be treated is fed into the abrasive portion (11) along the first curved guide groove (131).

7. The integrated high-efficiency sludge sludge treatment device according to claim 1, 2 or 3, characterized in that a second curved guide plate (112) is provided on the inner wall of the drum of the abrasive portion (11), The second curved guide plates (112) disposed axially parallel to each other constitute a plurality of second curved guide grooves (113), and a plurality of abrasive members are disposed in the second curved guide grooves (113) ( 111) and a circumferential baffle (114) for lifting the radial arrangement of the mud to be treated as the drum rotates, the mud sand to be treated is continuously crushed on the one hand in the abrasive portion (11) by the abrasive member (111) while Under the action of the circumferential baffle (114), it is continuously dropped after the drum is lifted to further crush; the crushed mud sand advances along the second curved guide groove (113) and enters the mud-sand separation part ( 12).