Iron phosphate continuous dehydration and crystal form controllable system and control method thereof

A technology of iron phosphate and crystal form, applied in chemical instruments and methods, sustainable manufacturing/processing, furnace type, etc., can solve the problem that there are not many researches on reaction kinetics, and achieve excellent dehydration effect and consistent crystal form. Controlled and uniform particle size

Inactive Publication Date: 2018-11-02
SHANDONG LUBEI ENTERPRISE GROUP
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  • Abstract
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Problems solved by technology

The second part is more difficult. This part needs to remove the crystal water in the material. These water molecules are chemically bonded with the iron phosphate material, which re

Method used

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  • Iron phosphate continuous dehydration and crystal form controllable system and control method thereof
  • Iron phosphate continuous dehydration and crystal form controllable system and control method thereof

Examples

Experimental program
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Example Embodiment

[0026] Example 1, as figure 1 , figure 2 As shown, this embodiment provides a continuous dehydration and crystal form controllable system of iron phosphate, which aims to solve the technical problems that the existing iron phosphate crystal form is fully developed, the crystallinity is high, and the crystal form is consistent and controllable. It is explained here that the method of presenting a crystal form at present also relies on the heating method. In this embodiment, the problem of crystal formation development and crystallinity is mainly solved. For this reason, the continuous dehydration and crystallinity of iron phosphate provided by this embodiment. The type controllable system includes a flash dryer, a cyclone dust collector, a rotary kiln, a second cyclone dust collector and a packaging machine arranged in sequence along the material flow direction. Water, the main function of the cyclone dust collector is to collect the iron phosphate dihydrate after removing fr...

Example Embodiment

[0034] Embodiment 2, this embodiment provides the control method of the continuous dehydration and crystal form controllable system using the iron phosphate provided in the above embodiment 1

[0035] First, the iron phosphate filter cake is transported to the hopper of the flash dryer, and then continuously fed into the flash dryer by the screw feeder.

[0036] Then the blower sends the cold air into the hot blast furnace to be heated to form 250℃~300℃ hot air tangentially and enters the bottom of the flash drying, and forms a strong rotating wind field driven by the dispersing motor. The dispersing machine is set up to filter the iron phosphate. The cake is broken, and at the same time, its rotation can also rotate the wind conveyed from the hot blast stove, so that the wet iron phosphate dihydrate product is dispersed, pulverized and dried under the action of high temperature and high speed rotating wind field, and free water is removed.

[0037] The ferric phosphate dihydr...

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Abstract

The invention belongs to the field of iron phosphate preparation, and particularly relates to an iron phosphate continuous dehydration and crystal form controllable system and a control method thereof. The system comprises a flash steaming dryer, a cyclone dust collector, a rotary kiln, a second cyclone dust collector and a packaging machine, which are arranged in sequence along a logistical direction; a hot air blower which is used for supplying air to the flash steaming dryer is arranged at one side of the flash steaming dryer; the hot air blower is communicated with the bottom of the flashsteaming dryer; a beater which is used for beating the hot air and forming cyclone in the flash steaming dryer is arranged at the bottom of the flash steaming dryer; a second beater is arranged between the cyclone dust collector and the rotary kiln; the rotary kiln is an external electric heating type rotary calcining kiln; and a flash dry bag filter which is used for collecting free water tail gas not dehydrated by the cyclone dust collector is arranged between the flash steaming dryer and the rotary kiln. The iron phosphate continuous dehydration and crystal form controllable system and thecontrol method thereof are small in investment, low in energy consumption and suitable for large-scale popularization and application.

Description

technical field [0001] The invention belongs to the field of ferric phosphate preparation, and in particular relates to a continuous dehydration and crystal form controllable system of ferric phosphate and a control method thereof. Background technique [0002] In today's society where resource integration is becoming more and more important, more and more industrial manufacturers tend to purchase more functional iron phosphate, such as battery-grade iron orthophosphate, which is specially developed and produced for the characteristics of lithium iron phosphate battery cathode materials. An iron phosphate; it has the characteristics of uniform crystal distribution, small particles, high tap density and high purity. The market for energy storage batteries will be more than ten times the size of all current lithium battery application markets. With the development of urbanization, more than 50% of China's population lives in cities, which has caused difficulties for urban elec...

Claims

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Application Information

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IPC IPC(8): F26B11/10F26B21/00F26B25/00F26B25/04F27B7/42C01B25/37
CPCC01B25/375F26B11/10F26B21/001F26B25/00F26B25/04F27B7/42Y02P20/10Y02P20/129Y02P70/10
Inventor 吕天宝刘文财张占儒马文国鲍树涛徐岩岭于文刚王同永张绍伟孙瑞军
Owner SHANDONG LUBEI ENTERPRISE GROUP
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