A sludge solidification mixing device

Abstract

The utility model discloses a sludge solidification mixing and stirring device, which is applied to the field of marine dredged sludge solidification technology engineering. The device is composed of a mixture storage bin, a stirring bin, a motor, a gear box, and an intelligent control device; the stirring bin is divided into an inner stirring bin and an outer stirring bin, so as to achieve multiple stirring of the mixture and improve the stirring uniformity; by opening a cleaning port on the bottom and wall of the stirring bin, it is convenient to clean the stirring bin and prevent the stirring bin from being blocked; the intelligent control device monitors material data in real time through a transmission line, controls the material control valve and stirring time, improves the stirring automation level, reduces the labor intensity of workers, and realizes intelligent stirring.

Description

Technical Field

[0001] The utility model relates to a sludge solidification mixing and stirring device, which is applied to the field of marine dredging sludge solidification technology engineering. Background Art

[0002] In recent years, with the rapid development of the marine economy in coastal areas, the construction and maintenance of ports, waterways, oceans and coastal projects in my country have doubled. In order to alleviate the contradiction of land shortage, a large amount of land needs to be formed through land reclamation. Land reclamation will produce a large amount of dredged silt, and the discharge of dredged silt will also cause environmental pollution. In order to solve the technical problem of how to effectively, quickly and economically utilize dredged silt, many domestic and foreign scholars have begun to study the addition of curing agents to dredged silt, mixing and stirring through a stirring device, and using the improved mud for backfilling and land reclamation.

[0003] However, at present, most of the existing sludge mixing and stirring devices are manually controlled, with high labor intensity for workers, the mixing quality is completely dependent on the workers' operating experience, the degree of intelligence is low, the material mixing is uneven, the mixing efficiency is low, the material waste is serious, and the equipment cleaning and maintenance are difficult.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a sludge solidification mixing and stirring device to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To this end, the specific technical solution adopted in the present utility model is as follows.

[0007] A sludge solidification mixing and stirring device, characterized in that it includes a mixture storage bin, a stirring bin, an electric motor, a gear box, and an intelligent control device; the stirring bin is installed in the mixture storage bin; the stirring bin includes a feed bin, an outer stirring bin, and an inner stirring bin; the feed bin is installed on the upper part of the inner stirring bin, and the inner stirring bin is installed in the outer stirring bin; the feed bin is provided with a curing agent feeding port and a sludge feeding port; the wall of the inner stirring bin is provided with inner stirring blades and outer stirring blades, the bottom of the inner stirring bin is designed with a Bernoulli discharge port, the top of the outer stirring bin is in an open form, and the height is lower than the inner stirring bin, so as to ensure that the mixture flows into the mixture storage bin in the form of top overflow.

[0008] Furthermore, the outer mixing bin is of assembled or telescopic type, and the height of the outer mixing bin can be adjusted according to actual needs.

[0009] Furthermore, the curing agent feeding port is arranged in the upper middle position of the feed bin; the sludge feeding port is arranged on one side of the feed bin and is arranged tangent to the feed bin, so that the sludge enters the feed bin in a swirling manner and wraps the curing agent in the middle of the sludge, reducing the adhesion of the curing agent to the wall of the feed bin and dust.

[0010] Furthermore, the curing agent feeding port is connected to the external curing agent storage bin through the curing agent delivery pipeline; the curing agent delivery pipeline is provided with a weighing sensor; the curing agent delivery pipeline is provided with a curing agent feeding control valve; the sludge feeding port is connected to the external sludge storage bin through the sludge delivery pipeline; the sludge delivery pipeline is provided with a flow sensor; the sludge delivery pipeline is provided with a sludge feeding control valve.

[0011] Furthermore, a liquid level sensor and a density sensor are provided in the outer mixing bin to monitor the volume and density of the mixing slurry; a cleaning port is provided at the bottom of the bin, and a plurality of discharge ports are opened on the wall of the outer mixing bin to ensure the smooth cleaning of the mixing slurry.

[0012] Furthermore, the mixed material storage bin is provided with a delivery pipe opening and a filtering device, and the delivery pipe opening is provided below the filtering device.

[0013] Furthermore, the intelligent control device is installed on the outer wall of the mixture storage bin, and the intelligent control device is connected to the liquid level sensor, density sensor, flow sensor, curing agent feeding control valve, sludge feeding control valve, weighing sensor, and motor through lines.

[0014] Beneficial effects of the utility model:

[0015] (1) By optimizing the design of the mixing bin structure, setting up the inner mixing bin and the outer mixing bin, and setting the inner mixing blades and the outer mixing blades on the wall of the inner mixing bin, the material can be mixed multiple times and mixed more evenly; the bottom of the inner mixing bin is designed with a clearing port, and the Bernoulli principle can be used to further improve the discharging and discharge efficiency of the inner mixing bin;

[0016] (2) By optimizing the design of the feed bin structure, the sludge feed port adopts a cyclone feed, and a curing agent feed port is set in the middle of the cyclone device, so that the powder material is in a coated state when the slurry is fed, which can effectively reduce the dust, local accumulation and solidification of the powder. At the same time, the cyclone feed flushes the cyclone feed port, mixing blades and mixing bin, which can further clean the mixing bin structure;

[0017] (3) By optimizing the design of the mixing outer bin structure, setting 4 small mixed material discharge ports on the mixing outer bin wall, and setting a material clearing port at the bottom of the mixing outer bin, it is ensured that the materials in the mixing bin can be discharged slowly by themselves when the equipment stops abnormally, preventing the mixing bin from solidifying as a whole, and facilitating cleaning. The materials mainly enter the storage bin by overflow, which can ensure that the materials in the mixing bin are constantly in a full tank state. A full tank state of the mixing bin can further improve the uniformity of logistics mixing, and can also ensure that the internal structure is in a moist state for a long time without accumulation and agglomeration;

[0018] (4) Install intelligent control devices and sensors to monitor and control the mixing ratio of slurry and powder in real time to ensure the mixing effect, reduce the labor intensity of workers, and improve the automation and intelligence of equipment;

[0019] (5) By optimizing the structural form of the outer mixing chamber, the height of the outer mixing chamber can be adjusted. The mud mixing time can be controlled by adjusting the height of the outer mixing chamber, and the cleaning of the mixing chamber can also be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the general assembly diagram of the offshore sludge mixing device.

[0021] Figure 2 is a diagram of the mixing chamber of the offshore sludge mixing device.

[0022] Figure 3 is a diagram of the material storage bin of the offshore sludge mixing and stirring device.

[0023] Figure 4 is a diagram of the feeding silo of the offshore sludge mixing and stirring device.

[0024] Figure markings: 1-mixture storage bin, 2-mixing bin, 3-motor, 4-gear box, 5-intelligent control device, 11-filtering device, 12-conveying pipe port, 21-feeding bin, 211-curing agent feeding port, 212-sludge feeding port, 213-sludge conveying pipeline, 214-flow sensor, 215-curing agent feeding control valve, 216-sludge feeding control valve, 22-mixing outer bin, 221-liquid level sensor, 222-density sensor, 223-clearing port, 224-discharging port, 23-mixing inner bin, 231-inner mixing blade, 232-outer mixing blade, 233-Bernoulli discharging port. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the utility model in conjunction with the accompanying drawings. The specific implementation is a further explanation of the principle of the utility model, and does not limit the utility model in any way. The same or similar technologies as the utility model do not exceed the scope of protection of the utility model.

[0026] As shown in Figures 1 to 4, a sludge solidification mixing and stirring device is characterized in that it includes a mixture storage bin 1, a stirring bin 2, a motor 3, a gear box 4, and an intelligent control device 5; the stirring bin 2 is installed in the mixture storage bin 1; the stirring bin 2 includes a feed bin 21, a stirring outer bin 22, and a stirring inner bin 23; the feed bin 21 is installed on the upper part of the stirring inner bin 23, and the stirring inner bin 23 is installed in the stirring outer bin 22; the feed bin 21 is provided with a curing agent feeding port 211 and a sludge feeding port 212; the wall of the stirring inner bin 23 is provided with an inner stirring blade 231 and an outer stirring blade 232, and the bottom of the stirring inner bin 23 is designed with a Bernoulli discharge port 233, and the top of the stirring outer bin 22 is an opening form, and the height is lower than the stirring inner bin 23, so as to ensure that the mixture flows into the mixture storage bin 1 in the form of top overflow.

[0027] As an optional embodiment, the mixing outer bin 22 is of assembled or telescopic type, and the height of the mixing outer bin 22 can be adjusted according to actual needs.

[0028] As an optional embodiment, the curing agent feeding port 211 is arranged in the upper middle position of the feed bin 21; the sludge feeding port 212 is arranged on one side of the feed bin 21 and is arranged tangentially to the feed bin, so that the sludge enters the feed bin 21 in a swirling manner and wraps the curing agent in the middle of the sludge, thereby reducing the adhesion of the curing agent to the wall of the feed bin and dust.

[0029] As an optional embodiment, the curing agent feeding port 211 is connected to an external curing agent storage bin through a curing agent delivery pipe; the curing agent delivery pipe is provided with a weighing sensor; the curing agent delivery pipe is provided with a curing agent feeding control valve 215; the sludge feeding port 212 is connected to an external sludge storage bin through a sludge delivery pipe 213; the sludge delivery pipe is provided with a flow sensor 214; the sludge delivery pipe is provided with a sludge feeding control valve 216.

[0030] As an optional embodiment, a liquid level sensor 221 and a density sensor 222 are provided in the stirring outer bin to monitor the volume and density of the stirring slurry; a cleaning port 223 is provided at the bottom of the bin, and a plurality of discharge ports 224 are provided on the wall of the stirring outer bin to ensure smooth cleaning of the stirring slurry.

[0031] As an optional embodiment, the mixed material storage bin 1 is provided with a delivery pipe opening 12 and a filtering device 11 , and the delivery pipe opening 12 is provided below the filtering device 11 .

[0032] As an optional embodiment, the intelligent control device 5 is installed on the outer wall of the mixture storage bin 1, and the intelligent control device (5) is connected to the liquid level sensor 221, the density sensor 222, the flow sensor 214, the curing agent feeding control valve 215, the sludge feeding control valve 216, the weighing sensor, and the motor 3 through lines.

Claims

1. A sludge solidification mixing and stirring device, characterized in that: The invention comprises a mixed material storage bin (1), a mixing bin (2), an electric motor (3), a gear box (4), and an intelligent control device (5); the mixing bin (2) is installed in the mixed material storage bin (1); the mixing bin (2) comprises a feed bin (21), a mixing outer bin (22), and a mixing inner bin (23); the feed bin (21) is installed on the upper part of the mixing inner bin (23), and the mixing inner bin (23) is installed in the mixing outer bin (22); the feed bin (21) is provided with a curing agent feeding port (211) and a sludge feeding port (212); the wall of the mixing inner bin (23) is provided with an inner mixing blade (231) and an outer mixing blade (232), and the bottom of the mixing inner bin (23) is designed with a Bernoulli discharge port (233); the top of the mixing outer bin (22) is in an open form, and its height is lower than that of the mixing inner bin (23), so as to ensure that the mixed material flows into the mixed material storage bin (1) in the form of top overflow.

2. A sludge solidification mixing and stirring device according to claim 1, characterized in that: The mixing outer bin (22) is of an assembled or telescopic type, and the height of the mixing outer bin (22) can be adjusted according to actual needs.

3. A sludge solidification mixing and stirring device according to claim 1, characterized in that: The curing agent feeding port (211) is arranged at the middle position of the upper part of the feed bin (21); the sludge feeding port (212) is arranged at one side of the feed bin (21) and is arranged tangentially to the feed bin, so that the sludge enters the feed bin (21) in a swirling manner and wraps the curing agent in the middle of the sludge, thereby reducing the adhesion of the curing agent to the wall of the feed bin and reducing dust.

4. A sludge solidification mixing and stirring device according to claim 1, characterized in that: The curing agent feeding port (211) is connected to an external curing agent storage bin via a curing agent delivery pipeline; the curing agent delivery pipeline is provided with a weighing sensor; the curing agent delivery pipeline is provided with a curing agent feeding control valve (215); the sludge feeding port (212) is connected to an external sludge storage bin via a sludge delivery pipeline (213); the sludge delivery pipeline is provided with a flow sensor (214); the sludge delivery pipeline is provided with a sludge feeding control valve (216).

5. A sludge solidification mixing and stirring device according to claim 4, characterized in that: The outer stirring bin is provided with a liquid level sensor (221) and a density sensor (222) to monitor the volume and density of the stirring slurry; a cleaning port (223) is provided at the bottom of the bin, and a plurality of discharge ports (224) are provided on the wall of the outer stirring bin to ensure smooth cleaning of the stirring slurry.

6. A sludge solidification mixing and stirring device according to claim 1, characterized in that: The mixed material storage bin (1) is provided with a delivery pipe opening (12) and a filtering device (11), and the delivery pipe opening (12) is arranged below the filtering device (11).

7. A sludge solidification mixing and stirring device according to claim 5, characterized in that: The intelligent control device (5) is installed on the outer wall of the mixed material storage bin (1), and the intelligent control device (5) is connected to the liquid level sensor (221), the density sensor (222), the flow sensor (214), the curing agent feeding control valve (215), the sludge feeding control valve (216), the weighing sensor, and the motor (3) through lines.

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