CN112461702B - Sludge water loss rate testing device and testing method thereof - Google Patents
Sludge water loss rate testing device and testing method thereof Download PDFInfo
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- CN112461702B CN112461702B CN202011245832.1A CN202011245832A CN112461702B CN 112461702 B CN112461702 B CN 112461702B CN 202011245832 A CN202011245832 A CN 202011245832A CN 112461702 B CN112461702 B CN 112461702B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
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- General Health & Medical Sciences (AREA)
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a sludge water loss rate testing device and a testing method thereof, wherein the testing device comprises a U-shaped air pipe; the U-shaped air pipe is inversely fixed on the bracket, one port of the U-shaped air pipe is an air inlet, the other port of the U-shaped air pipe is an air outlet, the air inlet is connected with the air inlet pipe, the air outlet is connected with the object placing air pipe through flexible connection, the object placing air pipe is fixedly provided with a screen plate, and the screen plate is transversely arranged to divide the object placing air pipe into an upper part and a lower part; a heater is arranged between the U-shaped air pipe and the air inlet pipe; a plurality of pull rods are uniformly distributed on one circumference of the air outlet end of the U-shaped air pipe, the upper ends of the pull rods are fixedly connected with the U-shaped air pipe, the lower ends of the pull rods are fixedly connected with the object placing air pipe, and each pull rod is provided with a weighing sensor; the length of the pull rod is smaller than that of the flexible connection; the testing device further comprises an air inlet fan, and the air inlet fan is connected with an air inlet pipe. The drying process of the sludge in the drying machine is simulated, and the water loss rate of the sludge, namely the drying characteristics of the sludge, can be accurately measured.
Description
Technical Field
The invention relates to the technical field of sludge drying, in particular to a device and a method for testing the water loss rate of sludge.
Background
In the drying process, because the properties of different types of sludge are different, the corresponding water loss rates are also different.
Disclosure of Invention
The invention provides a device and a method for testing the water loss rate of sludge.
The technical scheme of the invention is as follows:
a sludge water loss rate testing device is used for detecting the drying characteristics of sludge; the testing device comprises a U-shaped air pipe; the U-shaped air pipe is inversely fixed on the support, one port of the U-shaped air pipe is an air inlet, the other port of the U-shaped air pipe is an air outlet, the air inlet is connected with the air inlet pipe, the air outlet is connected with the object placing air pipe through flexible connection, the object placing air pipe is fixedly provided with a screen plate, and the screen plate is transversely arranged to divide the object placing air pipe into an upper part and a lower part.
And a heater is arranged between the U-shaped air pipe and the air inlet pipe.
A plurality of pull rods are uniformly distributed on one circumference of the air outlet end of the U-shaped air pipe, the upper ends of the pull rods are fixedly connected with the U-shaped air pipe, the lower ends of the pull rods are fixedly connected with the object placing air pipe, and each pull rod is provided with a weighing sensor; the length of the pull rod is smaller than that of the flexible connection.
The testing device further comprises an air inlet fan, and the air inlet fan is connected with the air inlet pipe.
A temperature sensor and a wind speed sensor are also arranged in the U-shaped air pipe; for determining the air flow rate and temperature in the U-duct.
The flexible connection is formed by connecting an upper section of pipe and a lower section of pipe, the upper section of pipe is a flexible pipe, the lower section of pipe is a hard pipe, the upper section of pipe is fixedly connected with the U-shaped air pipe, and the lower section of pipe is connected with the object placing air pipe through the hoop. Make things convenient for the dismouting to place mud.
The heater is a barrel body with a heating coil pipe fixed inside in a coiling mode, the upper end of the heater is connected with the U-shaped air pipe through a hoop, and the lower end of the heater is connected with the air inlet air pipe through the hoop.
The method for testing the drying characteristics of the sludge by adopting the sludge water loss rate testing device determines the stacking thickness and the drying time of the sludge in the belt type drying machine by utilizing the drying characteristics of the sludge so as to ensure that the drying machine can finish drying operation efficiently; the drying machine is characterized in that the net plate has the same wind loss with a conveying chain plate of the belt drying machine; the method comprises the following steps:
1) sampling sludge and placing the sludge on a screen plate in the storage air pipe.
2) Turning on a heater and starting an air inlet fan; air is sucked by the air inlet fan, enters the U-shaped air pipe through the air inlet air pipe, enters the heater for heating, finally enters the object placing air pipe through the flexible connection, and finally passes through the sludge on the screen plate from top to bottom to take away moisture in the sludge and dry the sludge.
3) Along with the loss of water in the sludge, the weight of the sludge weighed by the weighing sensor changes, so that a water loss rate curve of the sludge can be drawn; thus obtaining the drying property of the sludge.
In the step 2), the flowing speed of the air is consistent with the air flow rate in the belt drier and is about 1 m/s, and the heating temperature of the air is consistent with the heating temperature of the air in the belt drier and is about 140 ℃.
The invention has the advantages of reasonable design and ingenious concept, simulates the drying process of the sludge in the drying machine, can accurately measure the water loss rate of the sludge, namely the drying characteristic of the sludge, provides theoretical basis for setting the stacking thickness and the drying time of the drying machine, and ensures that the drying machine can efficiently complete drying operation.
Drawings
FIG. 1 is a perspective view of a device for testing the water loss rate of sludge.
FIG. 2 is a front view of a sludge water loss rate testing device.
FIG. 3 is a side view of a device for testing the water loss rate of sludge.
Fig. 4 is a schematic sectional view taken along the direction of fig. 3A-a.
In the figure, the air duct comprises a U-shaped air duct 1, a bracket 2, an air inlet duct 3, a flexible connection 4, an object placing air duct 5, a screen plate 6, a heater 7 and a pull rod 8.
Detailed Description
As shown in fig. 1-4, a device for testing the water loss rate of sludge is used for detecting the drying property of the sludge; the testing device comprises a U-shaped air pipe 1; the U-shaped air pipe 1 is inversely fixed on the bracket 2, one port of the U-shaped air pipe is an air inlet, the other port of the U-shaped air pipe is an air outlet, the air inlet is connected with an air inlet pipe 3, the air outlet is connected with a storage air pipe 5 through a flexible joint 4, a screen plate 6 is fixedly arranged on the storage air pipe 5, the screen plate 6 is transversely arranged, and the storage air pipe 5 is divided into an upper part and a lower part; a heater 7 is arranged between the U-shaped air pipe 1 and the air inlet air pipe 3; a plurality of pull rods 8 are uniformly distributed on one circumference of the air outlet end of the U-shaped air pipe 1, the upper ends of the pull rods 8 are fixedly connected with the U-shaped air pipe 1, the lower ends of the pull rods 8 are fixedly connected with the object placing air pipe 5, and each pull rod 8 is provided with a weighing sensor; the length of the pull rod 8 is less than that of the flexible connection 4; the testing device also comprises an air inlet fan, and the air inlet fan is connected with the air inlet pipe 3; a temperature sensor and a wind speed sensor are also arranged in the U-shaped wind pipe 1; the flexible connection 4 is formed by connecting an upper section of pipe and a lower section of pipe, the upper section of pipe is a flexible pipe, the lower section of pipe is a hard pipe, the upper section of pipe is fixedly connected with the U-shaped air pipe 1, and the lower section of pipe is connected with the storage air pipe 5 through a hoop; the heater 7 is a cylinder body with a heating coil pipe fixed inside in a coiling manner, the upper end of the cylinder body is connected with the U-shaped air pipe through a hoop, and the lower end of the cylinder body is connected with the air inlet air pipe through a hoop.
The method for testing the drying characteristics of the sludge by adopting the sludge water loss rate testing device determines the stacking thickness and the drying time of the sludge in the belt type drying machine by utilizing the drying characteristics of the sludge so as to ensure that the drying machine can finish drying operation efficiently; the drying machine is characterized in that the net plate has the same wind loss with a conveying chain plate of the belt drying machine; the method comprises the following steps:
1) sampling sludge, and placing the sludge on a screen 6 in an object placing air pipe 5.
2) Turning on the heater 7 and starting the air inlet fan; air is sucked by the air inlet fan, enters the U-shaped air pipe through the air inlet air pipe, is heated by the heater 7, finally enters the object placing air pipe 5 through flexible connection, passes through the sludge on the screen plate 6 from top to bottom, takes away moisture in the sludge and dries the sludge.
3) Along with the loss of water in the sludge, the weight of the sludge weighed by the weighing sensor changes, so that a water loss rate curve of the sludge can be drawn; thus obtaining the drying property of the sludge.
In the step 2), the flowing speed of the air is consistent with the air flow rate in the belt drier and is about 1 m/s, and the heating temperature of the air is consistent with the heating temperature of the air in the belt drier and is about 140 ℃.
Because of the limited character expression, there are practically unlimited specific structures, and it will be apparent to those skilled in the art that various improvements, modifications or changes may be made without departing from the principles of the present invention, and the above technical features may also be combined in an appropriate manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (1)
1. A method for testing the drying characteristics of sludge by adopting a sludge water loss rate testing device determines the stacking thickness and drying time of the sludge in a belt type drying machine by utilizing the drying characteristics of the sludge so as to ensure that the drying machine can finish drying operation efficiently; the device is characterized in that the testing device comprises a U-shaped air pipe; the U-shaped air pipe is inversely fixed on the bracket, one port of the U-shaped air pipe is an air inlet, the other port of the U-shaped air pipe is an air outlet, the air inlet is connected with an air inlet pipe, the air outlet is connected with a storage air pipe through flexible connection, a screen plate is fixedly arranged on the storage air pipe, and the screen plate is transversely arranged to divide the storage air pipe into an upper part and a lower part; a heater is arranged between the U-shaped air pipe and the air inlet pipe; a plurality of pull rods are uniformly distributed on one circumference of the air outlet end of the U-shaped air pipe, the upper ends of the pull rods are fixedly connected with the U-shaped air pipe, the lower ends of the pull rods are fixedly connected with the object placing air pipe, and each pull rod is provided with a weighing sensor; the length of the pull rod is smaller than that of the flexible connection; the testing device also comprises an air inlet fan, and the air inlet fan is connected with an air inlet pipe; a temperature sensor and a wind speed sensor are also arranged in the U-shaped wind pipe; the flexible connection is formed by connecting an upper section of pipe and a lower section of pipe, the upper section of pipe is a flexible pipe, the lower section of pipe is a hard pipe, the upper section of pipe is fixedly connected with the U-shaped air pipe, and the lower section of pipe is connected with the storage air pipe through a hoop; the heater is a cylinder body internally coiled and fixed with a heating coil, the upper end of the heater is connected with the U-shaped air pipe through an anchor ear, and the lower end of the heater is connected with the air inlet air pipe through an anchor ear; the mesh plate is consistent with the wind loss of a conveying chain plate of the belt drier; the method comprises the following steps:
1) sampling sludge and placing the sludge on a screen plate in an article placing air pipe;
2) turning on a heater and starting an air inlet fan; air is sucked by the air inlet fan, enters the U-shaped air pipe through the air inlet air pipe, enters the heater for heating, finally enters the object placing air pipe through flexible connection, passes through the sludge on the screen plate from top to bottom, takes away moisture in the sludge and dries the sludge;
3) along with the loss of water in the sludge, the weight of the sludge weighed by the weighing sensor changes, so that a water loss rate curve of the sludge can be drawn; the drying property of the sludge is obtained;
in the step 2), the flow speed of the air is consistent with the air flow speed in the belt drier, and the air heating temperature is consistent with the air heating temperature in the belt drier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245832.1A CN112461702B (en) | 2020-11-10 | 2020-11-10 | Sludge water loss rate testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011245832.1A CN112461702B (en) | 2020-11-10 | 2020-11-10 | Sludge water loss rate testing device and testing method thereof |
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| CN112461702A CN112461702A (en) | 2021-03-09 |
| CN112461702B true CN112461702B (en) | 2022-07-08 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337335A (en) * | 2017-08-02 | 2017-11-10 | 上海净泥新能源科技有限公司 | A kind of sludge drying and the equipment and technique of charing |
| CN109011971A (en) * | 2018-08-06 | 2018-12-18 | 东华工程科技股份有限公司 | A kind of sludge drying tail gas processing equipment and method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2837017A1 (en) * | 1978-08-24 | 1980-03-06 | Basf Ag | METHOD FOR DETERMINING THE DRAINAGE BEHAVIOR OF SLUDGE |
| JP3611022B2 (en) * | 1999-12-22 | 2005-01-19 | 株式会社クボタ | Measurement method for loss of ignition of sludge |
| CN202947943U (en) * | 2012-12-10 | 2013-05-22 | 中国科学院武汉岩土力学研究所 | Test device for determining sludge dewatering property |
| KR101640543B1 (en) * | 2016-03-18 | 2016-07-18 | (주)엠제이테크 | Measuring device for the water content of a sewage sludge |
| CN207423723U (en) * | 2017-09-20 | 2018-05-29 | 广东省建筑材料研究院 | A kind of detection device of drying sludge feature |
| CN208779902U (en) * | 2018-09-18 | 2019-04-23 | 四川省农业机械研究设计院 | Agricultural product hot-air drying device |
| JP7125332B2 (en) * | 2018-11-14 | 2022-08-24 | 株式会社ディスコ | Sludge drying equipment |
| CN210915795U (en) * | 2019-09-12 | 2020-07-03 | 深圳市前海智慧能源系统有限公司 | Sludge drying device |
| CN211814106U (en) * | 2019-12-31 | 2020-10-30 | 南通爱可普环保设备有限公司 | Belt type sludge drying chamber |
| CN211823746U (en) * | 2020-01-08 | 2020-10-30 | 南通爱可普环保设备有限公司 | External heat exchange dehumidification system for sludge drying |
-
2020
- 2020-11-10 CN CN202011245832.1A patent/CN112461702B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337335A (en) * | 2017-08-02 | 2017-11-10 | 上海净泥新能源科技有限公司 | A kind of sludge drying and the equipment and technique of charing |
| CN109011971A (en) * | 2018-08-06 | 2018-12-18 | 东华工程科技股份有限公司 | A kind of sludge drying tail gas processing equipment and method |
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| CN112461702A (en) | 2021-03-09 |
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